Get it on Google Play
New! Download Unionpedia on your Android™ device!
Faster access than browser!

In biology, a phylum (plural: phyla) is a level of classification or taxonomic rank below Kingdom and above Class. [1]

210 relations: Acanthocephala, Accordion, Acidobacteria, Actinobacteria, Amoeba (genus), Amoebozoa, Anatomical terms of location, Animal, Annelid, Anthoceros, Anus, APG system, Aquificae, Archaeplastida, Armatimonadetes, Arthropod, Ascomycota, August W. Eichler, Bacilli, Bacteroidetes, Basidiomycota, Bigyra, Bilateria, Biliphyta, Blastocladiomycota, Body plan, Borrelia burgdorferi, Botany, Brachiopod, Bryozoa, Bryum, Caldisericum, Catalogue of Life, Cavalier-Smith's system of classification, Cell (biology), Cercozoa, Chaetognatha, Chara (alga), Charophyta, Chitin, Chlamydiae, Chloroflexi (phylum), Chlorophyta, Choanozoa, Chordate, Chromista, Chrysiogenaceae, Chytridiomycota, Ciliate, Cilium, ..., Clade, Cladistics, Class (biology), Clostridia, Cnidaria, Cnidocyte, Crenarchaeota, Crown group, Cryptista, Ctenophora, Cuticle, Cyanobacteria, Cycad, Cycas, Deferribacteraceae, Deinococcus–Thermus, Deuterostome, Dictyoglomus thermophilum, Dicyemida, Division (biology), Dorsal nerve cord, Ecdysozoa, Echinoderm, Eichler system, Elusimicrobia, Embryophyte, Endostyle, Entomophthoromycota, Entoprocta, Ernst Haeckel, Escherichia coli, Euglenozoa, Eukaryote, Euryarchaeota, Exoskeleton, Family (biology), Fibrobacteres, Firmicutes, Flatworm, Flowering plant, Foraminifera, Fungus, Fusobacteria, Gametophyte, Gastrotrich, Gemmatimonadetes, Georges Cuvier, Ginkgo, Ginkgoales, Glaucophyte, Glomeromycota, Gnathostomulid, Gnetophyta, Gnetum, Graham Budd, Green algae, Green sulfur bacteria, Gymnosperm, Haptophyte, Hemichordate, Hornwort, Incertae sedis, International Code of Nomenclature for algae, fungi, and plants, Keratin, Kickxellomycotina, Kingdom (biology), Kinorhyncha, Korarchaeota, Leaf, Lentisphaerae, Limnognathia, Linnaean taxonomy, List of Prokaryotic names with Standing in Nomenclature, Lophophore, Loricifera, Loukozoa, Lycopodiophyta, Lycopodium, Magnolia, Mantle (mollusc), Marchantia, Marchantiophyta, Mesozoa, Metamonad, Microphyll, Microsporidia, Mollicutes, Mollusca, Moss, Mucoromycotina, Mycetozoa, Mycoplasma, Myzozoa, Nanoarchaeota, Nematode, Nematomorpha, Nemertea, Neocallimastigomycota, Nitrospira, Notochord, Ochrophyta, Onychophora, Oomycete, Order (biology), Orthonectida, Paraphyly, Percolozoa, Pharyngeal slit, Phenetics, Phoronid, Phylogenetics, Pine, Pinophyta, Placozoa, Planctomycetes, Plant, Plant taxonomy, Plural, Polyphyly, Priapulida, Priapus, Proboscis, Proteobacteria, Prothallium, Protist, Protostome, Protozoa, Pseudomonas aeruginosa, Pteridophyte, Pteris, Radiolaria, Red algae, Rotation around a fixed axis, Rotifer, Salinella, Sarcomastigophora, Siboglinidae, Spirochaete, Sponge, Sporophyte, Stomochord, Symbion, Symmetry, Synergistetes, Systematics, Tail, Tardigrade, Taxonomic rank, Taxonomy (biology), Tenericutes, Tentacle, Thaumarchaeota, Thermodesulfobacteria, Thermotogae, Thorax, Verrucomicrobia, Viridiplantae, Xenacoelomorpha, Zoopagomycotina, Zygomycota. Expand index (160 more) »


Acanthocephala (Greek ἄκανθος, akanthos, thorn + κεφαλή, kephale, head) is a phylum of parasitic worms known as acanthocephalans, thorny-headed worms, or spiny-headed worms, characterized by the presence of an eversible proboscis, armed with spines, which it uses to pierce and hold the gut wall of its host.

New!!: Phylum and Acanthocephala · See more »


Accordions (from 19th-century German Akkordeon, from Akkord—"musical chord, concord of sounds") are a family of box-shaped musical instruments of the bellows-driven free-reed aerophone type, colloquially referred to as a squeezebox.

New!!: Phylum and Accordion · See more »


Acidobacteria is a phylum of bacteria.

New!!: Phylum and Acidobacteria · See more »


The Actinobacteria are a phylum of Gram-positive bacteria.

New!!: Phylum and Actinobacteria · See more »

Amoeba (genus)

Amoeba is a genus of single-celled amoeboids in the family Amoebidae.

New!!: Phylum and Amoeba (genus) · See more »


Amoebozoa is a major taxonomic group containing about 2,400 described species of amoeboid protists, often possessing blunt, fingerlike, lobose pseudopods and tubular mitochondrial cristae.

New!!: Phylum and Amoebozoa · See more »

Anatomical terms of location

Standard anatomical terms of location deal unambiguously with the anatomy of animals, including humans.

New!!: Phylum and Anatomical terms of location · See more »


Animals are multicellular eukaryotic organisms that form the biological kingdom Animalia.

New!!: Phylum and Animal · See more »


The annelids (Annelida, from Latin anellus, "little ring"), also known as the ringed worms or segmented worms, are a large phylum, with over 22,000 extant species including ragworms, earthworms, and leeches.

New!!: Phylum and Annelid · See more »


Anthoceros is a genus of hornworts in the family Anthocerotaceae.

New!!: Phylum and Anthoceros · See more »


The anus (from Latin anus meaning "ring", "circle") is an opening at the opposite end of an animal's digestive tract from the mouth.

New!!: Phylum and Anus · See more »

APG system

The APG system (Angiosperm Phylogeny Group system) of plant classification is the first version of a modern, mostly molecular-based, system of plant taxonomy.

New!!: Phylum and APG system · See more »


The Aquificae phylum is a diverse collection of bacteria that live in harsh environmental settings.

New!!: Phylum and Aquificae · See more »


The Archaeplastida (or kingdom Plantae sensu lato) are a major group of eukaryotes, comprising the red algae (Rhodophyta), the green algae, and the land plants, together with a small group of freshwater unicellular algae called glaucophytes.

New!!: Phylum and Archaeplastida · See more »


Armatimonadetes is a phylum of gram-negative bacteria.

New!!: Phylum and Armatimonadetes · See more »


An arthropod (from Greek ἄρθρον arthron, "joint" and πούς pous, "foot") is an invertebrate animal having an exoskeleton (external skeleton), a segmented body, and paired jointed appendages.

New!!: Phylum and Arthropod · See more »


Ascomycota is a division or phylum of the kingdom Fungi that, together with the Basidiomycota, form the subkingdom Dikarya.

New!!: Phylum and Ascomycota · See more »

August W. Eichler

August Wilhelm Eichler, also known under his Latinized name, Augustus Guilielmus Eichler (22 April 1839 – 2 March 1887), was a German botanist who developed a new system of classification of plants to reflect the concept of evolution.

New!!: Phylum and August W. Eichler · See more »


Bacilli refers to a taxonomic class of bacteria.

New!!: Phylum and Bacilli · See more »


The phylum Bacteroidetes is composed of three large classes of Gram-negative, nonsporeforming, anaerobic or aerobic, and rod-shaped bacteria that are widely distributed in the environment, including in soil, sediments, and sea water, as well as in the guts and on the skin of animals.

New!!: Phylum and Bacteroidetes · See more »


Basidiomycota is one of two large divisions that, together with the Ascomycota, constitute the subkingdom Dikarya (often referred to as the "higher fungi") within the kingdom Fungi.

New!!: Phylum and Basidiomycota · See more »


Bigyra is a heterokont grouping.

New!!: Phylum and Bigyra · See more »


The Bilateria or bilaterians, or triploblasts, are animals with bilateral symmetry, i.e., they have a head (anterior) and a tail (posterior) as well as a back (dorsal) and a belly (ventral); therefore they also have a left side and a right side.

New!!: Phylum and Bilateria · See more »


Biliphyta is a grouping of algae.

New!!: Phylum and Biliphyta · See more »


Blastocladiomycota is one of the currently recognized phyla within the kingdom Fungi.

New!!: Phylum and Blastocladiomycota · See more »

Body plan

A body plan, Bauplan (German plural Baupläne), or ground plan is a set of morphological features common to many members of a phylum of animals.

New!!: Phylum and Body plan · See more »

Borrelia burgdorferi

Borrelia burgdorferi is a bacterial species of the spirochete class of the genus Borrelia.

New!!: Phylum and Borrelia burgdorferi · See more »


Botany, also called plant science(s), plant biology or phytology, is the science of plant life and a branch of biology.

New!!: Phylum and Botany · See more »


Brachiopods, phylum Brachiopoda, are a group of lophotrochozoan animals that have hard "valves" (shells) on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs.

New!!: Phylum and Brachiopod · See more »


Bryozoa (also known as the Polyzoa, Ectoprocta or commonly as moss animals) are a phylum of aquatic invertebrate animals.

New!!: Phylum and Bryozoa · See more »


Bryum is a genus of mosses in the family Bryaceae.

New!!: Phylum and Bryum · See more »


Caldisericum exile is a species of bacteria sufficiently distinct from other bacteria to be placed in its own family, order, class and phylum.

New!!: Phylum and Caldisericum · See more »

Catalogue of Life

The Catalogue of Life is an online database that provides the world’s most comprehensive and authoritative index of known species of animals, plants, fungi and micro-organisms.

New!!: Phylum and Catalogue of Life · See more »

Cavalier-Smith's system of classification

The classification system of life introduced by British zoologist Thomas Cavalier-Smith involves systematic arrangements of all life forms on earth.

New!!: Phylum and Cavalier-Smith's system of classification · See more »

Cell (biology)

The cell (from Latin cella, meaning "small room") is the basic structural, functional, and biological unit of all known living organisms.

New!!: Phylum and Cell (biology) · See more »


The Cercozoa are a group of single-celled eukaryotes.

New!!: Phylum and Cercozoa · See more »


Chaetognatha, meaning bristle-jaws, and commonly known as arrow worms, is a phylum of predatory marine worms which are a major component of plankton worldwide.

New!!: Phylum and Chaetognatha · See more »

Chara (alga)

Chara is a genus of charophyte green algae in the family Characeae.

New!!: Phylum and Chara (alga) · See more »


Charophyta is a division of freshwater green algae.

New!!: Phylum and Charophyta · See more »


Chitin (C8H13O5N)n, a long-chain polymer of ''N''-acetylglucosamine, is a derivative of glucose.

New!!: Phylum and Chitin · See more »


The Chlamydiae are bacterial phylum and class whose members are a group of obligate intracellular bacteria, whose members are remarkably diverse, ranging from pathogens of humans and animals to symbionts of ubiquitous protozoa.

New!!: Phylum and Chlamydiae · See more »

Chloroflexi (phylum)

The Chloroflexi or Chlorobacteria are a phylum of bacteria containing isolates with a diversity of phenotypes including members that are aerobic thermophiles, which use oxygen and grow well in high temperatures, anoxygenic phototrophs, which use light for photosynthesis (green non-sulfur bacteria), and anaerobic halorespirers, which uses halogenated organics (such as the toxic chlorinated ethenes and polychlorinated biphenyls) as electron acceptors.

New!!: Phylum and Chloroflexi (phylum) · See more »


Chlorophyta is a division of green algae, informally called chlorophytes.

New!!: Phylum and Chlorophyta · See more »


Choanozoa (Greek: χόανος (choanos) "funnel" and ζῶον (zōon) "animal") is the name of a phylum of eukaryotes that belongs to the line of opisthokonts.

New!!: Phylum and Choanozoa · See more »


A chordate is an animal belonging to the phylum Chordata; chordates possess a notochord, a hollow dorsal nerve cord, pharyngeal slits, an endostyle, and a post-anal tail, for at least some period of their life cycle.

New!!: Phylum and Chordate · See more »


The Chromista is an eukaryotic kingdom, probably polyphyletic.

New!!: Phylum and Chromista · See more »


Chrysiogenaceae is a bacterial family.

New!!: Phylum and Chrysiogenaceae · See more »


Chytridiomycota is a division of zoosporic organisms in the kingdom Fungi, informally known as chytrids.

New!!: Phylum and Chytridiomycota · See more »


The ciliates are a group of protozoans characterized by the presence of hair-like organelles called cilia, which are identical in structure to eukaryotic flagella, but are in general shorter and present in much larger numbers, with a different undulating pattern than flagella.

New!!: Phylum and Ciliate · See more »


A cilium (the plural is cilia) is an organelle found in eukaryotic cells.

New!!: Phylum and Cilium · See more »


A clade (from κλάδος, klados, "branch"), also known as monophyletic group, is a group of organisms that consists of a common ancestor and all its lineal descendants, and represents a single "branch" on the "tree of life".

New!!: Phylum and Clade · See more »


Cladistics (from Greek κλάδος, cládos, i.e., "branch") is an approach to biological classification in which organisms are categorized in groups ("clades") based on the most recent common ancestor.

New!!: Phylum and Cladistics · See more »

Class (biology)

In biological classification, class (classis) is a taxonomic rank, as well as a taxonomic unit, a taxon, in that rank.

New!!: Phylum and Class (biology) · See more »


The Clostridia are a highly polyphyletic class of Firmicutes, including Clostridium and other similar genera.

New!!: Phylum and Clostridia · See more »


Cnidaria is a phylum containing over 10,000 species of animals found exclusively in aquatic (freshwater and marine) environments: they are predominantly marine species.

New!!: Phylum and Cnidaria · See more »


A cnidocyte (also known as a cnidoblast or nematocyte) is an explosive cell containing one giant secretory organelle or cnida (plural cnidae) that defines the phylum Cnidaria (corals, sea anemones, hydrae, jellyfish, etc.). Cnidae are used for prey capture and defense from predators.

New!!: Phylum and Cnidocyte · See more »


The Crenarchaeota (Greek for "spring old quality" as specimens were originally isolated from geothermally heated sulfuric springs in Italy) (also known as Crenarchaea or eocytes) are archaea that have been classified as a phylum of the Archaea domain.

New!!: Phylum and Crenarchaeota · See more »

Crown group

In phylogenetics, the crown group of a collection of species consists of the living representatives of the collection together with their ancestors back to their most recent common ancestor as well as all of that ancestor's descendants.

New!!: Phylum and Crown group · See more »


Cryptista is a clade of eukaryotes.

New!!: Phylum and Cryptista · See more »


Ctenophora (singular ctenophore, or; from the Greek κτείς kteis 'comb' and φέρω pherō 'to carry'; commonly known as comb jellies) is a phylum of invertebrate animals that live in marine waters worldwide.

New!!: Phylum and Ctenophora · See more »


A cuticle, or cuticula, is any of a variety of tough but flexible, non-mineral outer coverings of an organism, or parts of an organism, that provide protection.

New!!: Phylum and Cuticle · See more »


Cyanobacteria, also known as Cyanophyta, are a phylum of bacteria that obtain their energy through photosynthesis, and are the only photosynthetic prokaryotes able to produce oxygen.

New!!: Phylum and Cyanobacteria · See more »


Cycads are seed plants with a long fossil history that were formerly more abundant and more diverse than they are today.

New!!: Phylum and Cycad · See more »


Cycas is the type genus and the only genus recognised in the family Cycadaceae.

New!!: Phylum and Cycas · See more »


The Deferribacteraceae are a family of gram-negative bacteria which make energy by anaerobic respiration.

New!!: Phylum and Deferribacteraceae · See more »


Deinococcus–Thermus is a phylum of bacteria that are highly resistant to environmental hazards, also known as extremophiles.

New!!: Phylum and Deinococcus–Thermus · See more »


Deuterostomes (taxonomic term: Deuterostomia; meaning "second mouth" in Greek) are any members of a superphylum of animals.

New!!: Phylum and Deuterostome · See more »

Dictyoglomus thermophilum

Dictyoglomus is a genus of bacterium, given its own phylum, called the Dictyoglomi.

New!!: Phylum and Dictyoglomus thermophilum · See more »


Dicyemida, also known as Rhombozoa, is a phylum of tiny parasites that live in the renal appendages of cephalopods.

New!!: Phylum and Dicyemida · See more »

Division (biology)

Division is a taxonomic rank in biological classification that is used differently in zoology and in botany.

New!!: Phylum and Division (biology) · See more »

Dorsal nerve cord

The dorsal nerve cord is a unique feature to chordates, and it is mainly found in the Vertebrata chordate subphylum.

New!!: Phylum and Dorsal nerve cord · See more »


Ecdysozoa is a group of protostome animals, including Arthropoda (insects, chelicerata, crustaceans, and myriapods), Nematoda, and several smaller phyla.

New!!: Phylum and Ecdysozoa · See more »


Echinoderm is the common name given to any member of the phylum Echinodermata (from Ancient Greek, ἐχῖνος, echinos – "hedgehog" and δέρμα, derma – "skin") of marine animals.

New!!: Phylum and Echinoderm · See more »

Eichler system

A system of plant taxonomy, the Eichler system was the first phylogenetic (phyletic) or evolutionary system.

New!!: Phylum and Eichler system · See more »


The phylum Elusimicrobia, previously known as "Feluscia Gargantus", has been shown to be widespread in different ecosystems like marine environment, sewage sludge, contaminated sites and soils, and toxic wastes.

New!!: Phylum and Elusimicrobia · See more »


The Embryophyta are the most familiar group of green plants that form vegetation on earth.

New!!: Phylum and Embryophyte · See more »


The endostyle is an organ which assists lower-chordates (urochordates and cephalochordates, as well as the larvae of lampreys) in filter-feeding.

New!!: Phylum and Endostyle · See more »


Entomophthoromycota is a fungus division.

New!!: Phylum and Entomophthoromycota · See more »


Entoprocta, whose name means "anus inside", is a phylum of mostly sessile aquatic animals, ranging from long.

New!!: Phylum and Entoprocta · See more »

Ernst Haeckel

Ernst Heinrich Philipp August Haeckel (16 February 1834 – 9 August 1919) was a German biologist, naturalist, philosopher, physician, professor, marine biologist, and artist who discovered, described and named thousands of new species, mapped a genealogical tree relating all life forms, and coined many terms in biology, including anthropogeny, ecology, phylum, phylogeny, and Protista. Haeckel promoted and popularised Charles Darwin's work in Germany and developed the influential but no longer widely held recapitulation theory ("ontogeny recapitulates phylogeny") claiming that an individual organism's biological development, or ontogeny, parallels and summarises its species' evolutionary development, or phylogeny.

New!!: Phylum and Ernst Haeckel · See more »

Escherichia coli

Escherichia coli (also known as E. coli) is a Gram-negative, facultatively anaerobic, rod-shaped, coliform bacterium of the genus Escherichia that is commonly found in the lower intestine of warm-blooded organisms (endotherms).

New!!: Phylum and Escherichia coli · See more »


The euglenozoa are a large group of flagellate excavates.

New!!: Phylum and Euglenozoa · See more »


Eukaryotes are organisms whose cells have a nucleus enclosed within membranes, unlike Prokaryotes (Bacteria and other Archaea).

New!!: Phylum and Eukaryote · See more »


Euryarchaeota (Greek for "broad old quality") is a phylum of archaea.

New!!: Phylum and Euryarchaeota · See more »


An exoskeleton (from Greek έξω, éxō "outer" and σκελετός, skeletós "skeleton") is the external skeleton that supports and protects an animal's body, in contrast to the internal skeleton (endoskeleton) of, for example, a human.

New!!: Phylum and Exoskeleton · See more »

Family (biology)

In biological classification, family (familia, plural familiae) is one of the eight major taxonomic ranks; it is classified between order and genus.

New!!: Phylum and Family (biology) · See more »


Fibrobacteres is a small bacterial phylum which includes many of the major rumen bacteria, allowing for the degradation of plant-based cellulose in ruminant animals.

New!!: Phylum and Fibrobacteres · See more »


The Firmicutes (Latin: firmus, strong, and cutis, skin, referring to the cell wall) are a phylum of bacteria, most of which have Gram-positive cell wall structure.

New!!: Phylum and Firmicutes · See more »


The flatworms, flat worms, Platyhelminthes, Plathelminthes, or platyhelminths (from the Greek πλατύ, platy, meaning "flat" and ἕλμινς (root: ἑλμινθ-), helminth-, meaning "worm") are a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates.

New!!: Phylum and Flatworm · See more »

Flowering plant

The flowering plants, also known as angiosperms, Angiospermae or Magnoliophyta, are the most diverse group of land plants, with 416 families, approximately 13,164 known genera and c. 295,383 known species.

New!!: Phylum and Flowering plant · See more »


Foraminifera (Latin for "hole bearers"; informally called "forams") are members of a phylum or class of amoeboid protists characterized by streaming granular ectoplasm for catching food and other uses; and commonly an external shell (called a "test") of diverse forms and materials.

New!!: Phylum and Foraminifera · See more »


A fungus (plural: fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms.

New!!: Phylum and Fungus · See more »


Fusobacteria are obligately anaerobic non-sporeforming Gram-negative bacilli.

New!!: Phylum and Fusobacteria · See more »


A gametophyte is one of the two alternating phases in the life cycle of plants and algae.

New!!: Phylum and Gametophyte · See more »


The gastrotrichs (phylum Gastrotricha), commonly referred to as hairybacks, are a group of microscopic (0.06-3.0 mm), worm-like, pseudocoelomate animals, and are widely distributed and abundant in freshwater and marine environments.

New!!: Phylum and Gastrotrich · See more »


The Gemmatimonadetes are a phylum of bacteria created for the type species Gemmatimonas aurantiaca.

New!!: Phylum and Gemmatimonadetes · See more »

Georges Cuvier

Jean Léopold Nicolas Frédéric, Baron Cuvier (23 August 1769 – 13 May 1832), known as Georges Cuvier, was a French naturalist and zoologist, sometimes referred to as the "founding father of paleontology".

New!!: Phylum and Georges Cuvier · See more »


Ginkgo is a genus of highly unusual non-flowering plants.

New!!: Phylum and Ginkgo · See more »


Ginkgoales or Ginkgophyte is a gymnosperm order containing only one extant species: Ginkgo biloba, the ginkgo tree.

New!!: Phylum and Ginkgoales · See more »


The glaucophytes, also known as glaucocystophytes or glaucocystids, are a small group of rare freshwater microscopic algae.

New!!: Phylum and Glaucophyte · See more »


Glomeromycota (informally glomeromycetes) is one of eight currently recognized divisions within the kingdom Fungi, with approximately 230 described species.

New!!: Phylum and Glomeromycota · See more »


Gnathostomulids, or jaw worms, are a small phylum of nearly microscopic marine animals.

New!!: Phylum and Gnathostomulid · See more »


Gnetophyta is a division of plants, grouped within the gymnosperms (which also includes conifers, cycads, and ginkgos), that consists of some 70 species across the three relict genera: Gnetum (family Gnetaceae), Welwitschia (family Welwitschiaceae), and Ephedra (family Ephedraceae).

New!!: Phylum and Gnetophyta · See more »


Gnetum is a genus of gymnosperms, the sole genus in the family Gnetaceae and order Gnetales.

New!!: Phylum and Gnetum · See more »

Graham Budd

Graham Edward Budd (born 7 September 1968, Colchester) is a British palaeontologist, Professor of palaeobiology at Uppsala University.

New!!: Phylum and Graham Budd · See more »

Green algae

The green algae (singular: green alga) are a large, informal grouping of algae consisting of the Chlorophyta and Charophyta/Streptophyta, which are now placed in separate divisions, as well as the more basal Mesostigmatophyceae, Chlorokybophyceae and Spirotaenia.

New!!: Phylum and Green algae · See more »

Green sulfur bacteria

The green sulfur bacteria (Chlorobiaceae) are a family of obligately anaerobic photoautotrophic bacteria.

New!!: Phylum and Green sulfur bacteria · See more »


The gymnosperms are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes.

New!!: Phylum and Gymnosperm · See more »


The haptophytes, classified either as the Haptophyta, Haptophytina or Prymnesiophyta (named for Prymnesium), are a Division (botany) of algae.

New!!: Phylum and Haptophyte · See more »


Hemichordata is a phylum of marine deuterostome animals, generally considered the sister group of the echinoderms.

New!!: Phylum and Hemichordate · See more »


Hornworts are a group of non-vascular plants constituting the division Anthocerotophyta.

New!!: Phylum and Hornwort · See more »

Incertae sedis

Incertae sedis (Latin for "of uncertain placement") is a term used for a taxonomic group where its broader relationships are unknown or undefined.

New!!: Phylum and Incertae sedis · See more »

International Code of Nomenclature for algae, fungi, and plants

The International Code of Nomenclature for algae, fungi, and plants (ICN) is the set of rules and recommendations dealing with the formal botanical names that are given to plants, fungi and a few other groups of organisms, all those "traditionally treated as algae, fungi, or plants".

New!!: Phylum and International Code of Nomenclature for algae, fungi, and plants · See more »


Keratin is one of a family of fibrous structural proteins.

New!!: Phylum and Keratin · See more »


Kickxellomycotina is a fungus grouping.

New!!: Phylum and Kickxellomycotina · See more »

Kingdom (biology)

In biology, kingdom (Latin: regnum, plural regna) is the second highest taxonomic rank, just below domain.

New!!: Phylum and Kingdom (biology) · See more »


Kinorhyncha (I move, ῥύγχος "snout") is a phylum of small (1 mm or less) marine invertebrates that are widespread in mud or sand at all depths as part of the meiobenthos.

New!!: Phylum and Kinorhyncha · See more »


In taxonomy, the Korarchaeota are a phylum of the Archaea.

New!!: Phylum and Korarchaeota · See more »


A leaf is an organ of a vascular plant and is the principal lateral appendage of the stem.

New!!: Phylum and Leaf · See more »


Lentisphaerae is a phylum of bacteria closely related to Chlamydiae and Verrucomicrobia.

New!!: Phylum and Lentisphaerae · See more »


Limnognathia maerski is a microscopic platyzoan animal, discovered living in homothermic springs on Disko Island, Greenland in 1994, that has variously been assigned as a class or subphylum in the phylum Gnathifera or as a phylum in a Gnathifera superphylum, named Micrognathozoa.

New!!: Phylum and Limnognathia · See more »

Linnaean taxonomy

Linnaean taxonomy can mean either of two related concepts.

New!!: Phylum and Linnaean taxonomy · See more »

List of Prokaryotic names with Standing in Nomenclature

List of Prokaryotic names with Standing in Nomenclature (LPSN) is an online database that maintains information on the naming and taxonomy of prokaryotes, following the taxonomy requirements and rulings of the International Code of Nomenclature of Bacteria.

New!!: Phylum and List of Prokaryotic names with Standing in Nomenclature · See more »


The lophophore is a characteristic feeding organ possessed by four major groups of animals: the Brachiopoda, Bryozoa, Hyolitha, and Phoronida, which collectively constitute the protostome group Lophophorata.

New!!: Phylum and Lophophore · See more »


Loricifera (from Latin, lorica, corselet (armour) + ferre, to bear) is a phylum of very small to microscopic marine cycloneuralian sediment-dwelling animals with 37 described species, in nine genera.

New!!: Phylum and Loricifera · See more »


Loukozoa (From Greek loukos: groove) is a proposed taxon used in some classifications of excavate eukaryotes.

New!!: Phylum and Loukozoa · See more »


The Division Lycopodiophyta (sometimes called lycophyta or lycopods) is a tracheophyte subgroup of the Kingdom Plantae.

New!!: Phylum and Lycopodiophyta · See more »


Lycopodium (from Greek lukos, wolf and podion, diminutive of pous, foot) is a genus of clubmosses, also known as ground pines or creeping cedar, in the family Lycopodiaceae, a family of fern-allies (see Pteridophyta).

New!!: Phylum and Lycopodium · See more »


Magnolia is a large genus of about 210The number of species in the genus Magnolia depends on the taxonomic view that one takes up.

New!!: Phylum and Magnolia · See more »

Mantle (mollusc)

The mantle (also known by the Latin word pallium meaning mantle, robe or cloak, adjective pallial) is a significant part of the anatomy of molluscs: it is the dorsal body wall which covers the visceral mass and usually protrudes in the form of flaps well beyond the visceral mass itself.

New!!: Phylum and Mantle (mollusc) · See more »


Marchantia is a genus in the family Marchantiaceae of the order Marchantiales, a group of liverworts.

New!!: Phylum and Marchantia · See more »


The Marchantiophyta are a division of non-vascular land plants commonly referred to as hepatics or liverworts.

New!!: Phylum and Marchantiophyta · See more »


The Mesozoa (singular: mesozoon) are minuscule, worm-like parasites of marine invertebrates.

New!!: Phylum and Mesozoa · See more »


The metamonads are a large group of flagellate amitochondriate excavates.

New!!: Phylum and Metamonad · See more »


In plant anatomy and evolution a microphyll is a type of plant leaf with one single, unbranched leaf vein.

New!!: Phylum and Microphyll · See more »


Microsporidia are a group of spore-forming unicellular parasites.

New!!: Phylum and Microsporidia · See more »


Mollicutes is a class of bacteria distinguished by the absence of a cell wall.

New!!: Phylum and Mollicutes · See more »


Mollusca is a large phylum of invertebrate animals whose members are known as molluscs or mollusksThe formerly dominant spelling mollusk is still used in the U.S. — see the reasons given in Gary Rosenberg's.

New!!: Phylum and Mollusca · See more »


Mosses are small flowerless plants that typically grow in dense green clumps or mats, often in damp or shady locations.

New!!: Phylum and Moss · See more »


Mucoromycotina is a subdivision of Fungi of uncertain phylogenetic placement.

New!!: Phylum and Mucoromycotina · See more »


Mycetozoa is a grouping of slime molds.

New!!: Phylum and Mycetozoa · See more »


Mycoplasma is a genus of bacteria that lack a cell wall around their cell membrane.

New!!: Phylum and Mycoplasma · See more »


Myzozoahttps://www.infona.pl/resource/bwmeta1.element.elsevier-5d35e684-a832-3187-bc57-5f3d2ba06a04 is a grouping of specific phyla within Alveolata, that either feed through myzocytosis, or were ancestrally capable of feeding through myzocytosis.

New!!: Phylum and Myzozoa · See more »


Nanoarchaeota (Greek, "dwarf or tiny ancient one") are a phylum of the Archaea.

New!!: Phylum and Nanoarchaeota · See more »


The nematodes or roundworms constitute the phylum Nematoda (also called Nemathelminthes).

New!!: Phylum and Nematode · See more »


Nematomorpha (sometimes called Gordiacea, and commonly known as horsehair worms or Gordian worms) are a phylum of parasitoid animals superficially similar to nematode worms in morphology, hence the name.

New!!: Phylum and Nematomorpha · See more »


Nemertea is a phylum of invertebrate animals also known as "ribbon worms" or "proboscis worms".

New!!: Phylum and Nemertea · See more »


Neocallimastigomycota is a phylum containing anaerobic fungi, which are symbionts found in the digestive tracts of larger herbivores.

New!!: Phylum and Neocallimastigomycota · See more »


Nitrospira (from Latin: nitro, meaning "nitrate" and Greek: spira, meaning "spiral") translate into “a nitrate spiral” is a genus of bacteria within the monophyletic clade of Nitrospirae phylum.

New!!: Phylum and Nitrospira · See more »


In anatomy, the notochord is a flexible rod made out of a material similar to cartilage.

New!!: Phylum and Notochord · See more »


Ochrophyta is a group of mostly photosynthetic heterokonts.

New!!: Phylum and Ochrophyta · See more »


Onychophora (from Ancient Greek, onyches, "claws"; and pherein, "to carry"), commonly known as velvet worms (due to their velvety texture and somewhat wormlike appearance) or more ambiguously as peripatus (after the first described genus, Peripatus), is a phylum of elongate, soft-bodied, many-legged panarthropods.

New!!: Phylum and Onychophora · See more »


Oomycota or oomycetes form a distinct phylogenetic lineage of fungus-like eukaryotic microorganisms.

New!!: Phylum and Oomycete · See more »

Order (biology)

In biological classification, the order (ordo) is.

New!!: Phylum and Order (biology) · See more »


Orthonectida is a small phylum of poorly known parasites of marine invertebrates that are among the simplest of multi-cellular organisms.

New!!: Phylum and Orthonectida · See more »


In taxonomy, a group is paraphyletic if it consists of the group's last common ancestor and all descendants of that ancestor excluding a few—typically only one or two—monophyletic subgroups.

New!!: Phylum and Paraphyly · See more »


The Percolozoa are a group of colourless, non-photosynthetic excavates, including many that can transform between amoeboid, flagellate, and cyst stages.

New!!: Phylum and Percolozoa · See more »

Pharyngeal slit

Pharyngeal slits are filter-feeding organs found in Invertebrate chordates (lancelets and tunicates) and hemichordates living in aquatic environments.

New!!: Phylum and Pharyngeal slit · See more »


In biology, phenetics (phainein - to appear), also known as taximetrics, is an attempt to classify organisms based on overall similarity, usually in morphology or other observable traits, regardless of their phylogeny or evolutionary relation.

New!!: Phylum and Phenetics · See more »


Phoronids (scientific name Phoronida, sometimes called horseshoe worms) are a small phylum of marine animals that filter-feed with a lophophore (a "crown" of tentacles), and build upright tubes of chitin to support and protect their soft bodies.

New!!: Phylum and Phoronid · See more »


In biology, phylogenetics (Greek: φυλή, φῦλον – phylé, phylon.

New!!: Phylum and Phylogenetics · See more »


A pine is any conifer in the genus Pinus,, of the family Pinaceae.

New!!: Phylum and Pine · See more »


The Pinophyta, also known as Coniferophyta or Coniferae, or commonly as conifers, are a division of vascular land plants containing a single extant class, Pinopsida.

New!!: Phylum and Pinophyta · See more »


The Placozoa are a basal form of free-living (non-parasitic) multicellular organism.

New!!: Phylum and Placozoa · See more »


Planctomycetes are a phylum of aquatic bacteria and are found in samples of brackish, and marine and fresh water.

New!!: Phylum and Planctomycetes · See more »


Plants are mainly multicellular, predominantly photosynthetic eukaryotes of the kingdom Plantae.

New!!: Phylum and Plant · See more »

Plant taxonomy

Plant taxonomy is the science that finds, identifies, describes, classifies, and names plants.

New!!: Phylum and Plant taxonomy · See more »


The plural (sometimes abbreviated), in many languages, is one of the values of the grammatical category of number.

New!!: Phylum and Plural · See more »


A polyphyletic group is a set of organisms, or other evolving elements, that have been grouped together but do not share an immediate common ancestor.

New!!: Phylum and Polyphyly · See more »


Priapulida (priapulid worms, from Gr. πριάπος, priāpos 'Priapus' + Lat. -ul-, diminutive), sometimes referred to as penis worms, is a phylum of unsegmented marine worms.

New!!: Phylum and Priapulida · See more »


In Greek mythology, Priapus (Πρίαπος, Priapos) was a minor rustic fertility god, protector of livestock, fruit plants, gardens and male genitalia.

New!!: Phylum and Priapus · See more »


A proboscis is an elongated appendage from the head of an animal, either a vertebrate or an invertebrate.

New!!: Phylum and Proboscis · See more »


Proteobacteria is a major phylum of gram-negative bacteria. They include a wide variety of pathogens, such as Escherichia, Salmonella, Vibrio, Helicobacter, Yersinia, Legionellales, and many other notable genera. Others are free-living (non-parasitic), and include many of the bacteria responsible for nitrogen fixation. Carl Woese established this grouping in 1987, calling it informally the "purple bacteria and their relatives". Because of the great diversity of forms found in this group, it was named after Proteus, a Greek god of the sea capable of assuming many different shapes and is not named after the genus Proteus. Some Alphaproteobacteria can grow at very low levels of nutrients and have unusual morphology such as stalks and buds. Others include agriculturally important bacteria capable of inducing nitrogen fixation in symbiosis with plants. The type order is the Caulobacterales, comprising stalk-forming bacteria such as Caulobacter. The Betaproteobacteria are highly metabolically diverse and contain chemolithoautotrophs, photoautotrophs, and generalist heterotrophs. The type order is the Burkholderiales, comprising an enormous range of metabolic diversity, including opportunistic pathogens. The Hydrogenophilalia are obligate thermophiles and include heterotrophs and autotrophs. The type order is the Hydrogenophilales. The Gammaproteobacteria are the largest class in terms of species with validly published names. The type order is the Pseudomonadales, which include the genera Pseudomonas and the nitrogen-fixing Azotobacter. The Acidithiobacillia contain only sulfur, iron and uranium-oxidising autotrophs. The type order is the Acidithiobacillales, which includes economically important organisms used in the mining industry such as Acidithiobacillus spp. The Deltaproteobacteria include bacteria that are predators on other bacteria and are important contributors to the anaerobic side of the sulfur cycle. The type order is the Myxococcales, which includes organisms with self-organising abilities such as Myxococcus spp. The Epsilonproteobacteria are often slender, Gram-negative rods that are helical or curved. The type order is the Campylobacterales, which includes important food pathogens such as Campylobacter spp. The Oligoflexia are filamentous aerobes. The type order is the Oligoflexales, which contains the genus Oligoflexus.

New!!: Phylum and Proteobacteria · See more »


A prothallium, or prothallus (from Latin pro.

New!!: Phylum and Prothallium · See more »


A protist is any eukaryotic organism that has cells with nuclei and is not an animal, plant or fungus.

New!!: Phylum and Protist · See more »


Protostomia (from Greek πρωτο- proto- "first" and στόμα stoma "mouth") is a clade of animals.

New!!: Phylum and Protostome · See more »


Protozoa (also protozoan, plural protozoans) is an informal term for single-celled eukaryotes, either free-living or parasitic, which feed on organic matter such as other microorganisms or organic tissues and debris.

New!!: Phylum and Protozoa · See more »

Pseudomonas aeruginosa

Pseudomonas aeruginosa is a common Gram-negative, rod-shaped bacterium that can cause disease in plants and animals, including humans.

New!!: Phylum and Pseudomonas aeruginosa · See more »


A pteridophyte is a vascular plant (with xylem and phloem) that disperses spores (and lacks seeds).

New!!: Phylum and Pteridophyte · See more »


Pteris (brake) is a genus of about 300 species of ferns in the Pteridoideae subfamily of the Pteridaceae.

New!!: Phylum and Pteris · See more »


The Radiolaria, also called Radiozoa, are protozoa of diameter 0.1–0.2 mm that produce intricate mineral skeletons, typically with a central capsule dividing the cell into the inner and outer portions of endoplasm and ectoplasm.The elaborate mineral skeleton is usually made of silica.

New!!: Phylum and Radiolaria · See more »

Red algae

The red algae, or Rhodophyta, are one of the oldest groups of eukaryotic algae.

New!!: Phylum and Red algae · See more »

Rotation around a fixed axis

Rotation around a fixed axis or about a fixed axis of revolution or motion with respect to a fixed axis of rotation is a special case of rotational motion.

New!!: Phylum and Rotation around a fixed axis · See more »


The rotifers (Rotifera, commonly called wheel animals) make up a phylum of microscopic and near-microscopic pseudocoelomate animals.

New!!: Phylum and Rotifer · See more »


Salinella salve is a dubious species of very simple animal that may not exist, but which some have named as the sole member of the phylum Monoblastozoa.

New!!: Phylum and Salinella · See more »


The phylum Sarcomastigophora belongs to the Protista or protoctista kingdom and it includes many unicellular or colonial, autotrophic, or heterotrophic organisms.

New!!: Phylum and Sarcomastigophora · See more »


Siboglinidae, also known as the beard worms, is a family of polychaete annelid worms whose members made up the former phyla Pogonophora (the giant tube worms) and Vestimentifera.

New!!: Phylum and Siboglinidae · See more »


A spirochaete or spirochete is a member of the phylum Spirochaetes, which contains distinctive diderm (double-membrane) bacteria, most of which have long, helically coiled (corkscrew-shaped or spiraled, hence the name) cells.

New!!: Phylum and Spirochaete · See more »


Sponges, the members of the phylum Porifera (meaning "pore bearer"), are a basal Metazoa clade as sister of the Diploblasts.

New!!: Phylum and Sponge · See more »


A sporophyte is the diploid multicellular stage in the life cycle of a plant or alga.

New!!: Phylum and Sporophyte · See more »


The stomochord is a flexible, hollow tube found in hemichordates.

New!!: Phylum and Stomochord · See more »


Symbion is the name of a genus of aquatic animals, less than 0.5 mm wide, found living attached to the bodies of cold-water lobsters.

New!!: Phylum and Symbion · See more »


Symmetry (from Greek συμμετρία symmetria "agreement in dimensions, due proportion, arrangement") in everyday language refers to a sense of harmonious and beautiful proportion and balance.

New!!: Phylum and Symmetry · See more »


The Synergistetes is a recently recognized phylum of anaerobic bacteria that show Gram-negative staining and have rod/vibrioid cell shape.

New!!: Phylum and Synergistetes · See more »


Biological systematics is the study of the diversification of living forms, both past and present, and the relationships among living things through time.

New!!: Phylum and Systematics · See more »


The tail is the section at the rear end of an animal's body; in general, the term refers to a distinct, flexible appendage to the torso.

New!!: Phylum and Tail · See more »


Tardigrades (also known colloquially as water bears, or moss piglets) are water-dwelling, eight-legged, segmented micro-animals.

New!!: Phylum and Tardigrade · See more »

Taxonomic rank

In biological classification, taxonomic rank is the relative level of a group of organisms (a taxon) in a taxonomic hierarchy.

New!!: Phylum and Taxonomic rank · See more »

Taxonomy (biology)

Taxonomy is the science of defining and naming groups of biological organisms on the basis of shared characteristics.

New!!: Phylum and Taxonomy (biology) · See more »


Tenericutes (tener cutis: soft skin) is a phylum of bacteria that contains the class Mollicutes.

New!!: Phylum and Tenericutes · See more »


In zoology, a tentacle is a flexible, mobile, elongated organ present in some species of animals, most of them invertebrates.

New!!: Phylum and Tentacle · See more »


The Thaumarchaeota or Thaumarchaea (from the miracle) are a phylum of the Archaea proposed in 2008 after the genome of Cenarchaeum symbiosum was sequenced and found to differ significantly from other members of the hyperthermophilic phylum Crenarchaeota.

New!!: Phylum and Thaumarchaeota · See more »


The Thermodesulfobacteria are a phylum of thermophilic sulfate-reducing bacteria.

New!!: Phylum and Thermodesulfobacteria · See more »


The Thermotogae are a phylum of the domain Bacteria.

New!!: Phylum and Thermotogae · See more »


The thorax or chest (from the Greek θώραξ thorax "breastplate, cuirass, corslet" via thorax) is a part of the anatomy of humans and various other animals located between the neck and the abdomen.

New!!: Phylum and Thorax · See more »


Verrucomicrobia is a phylum of bacteria.

New!!: Phylum and Verrucomicrobia · See more »


Viridiplantae (literally "green plants") are a clade of eukaryotic organisms made up of the green algae, which are primarily aquatic, and the land plants (embryophytes), which emerged within them.

New!!: Phylum and Viridiplantae · See more »


Xenacoelomorpha is a basal bilaterian phylum of small and very simple animals, grouping the xenoturbellids with the acoelomorphs.

New!!: Phylum and Xenacoelomorpha · See more »


The Zoopagomycotina are a subdivision (incertae sedis) of the fungal division Zygomycota sensu lato.

New!!: Phylum and Zoopagomycotina · See more »


Zygomycota, or zygote fungi, is a division or phylum of the kingdom Fungi.

New!!: Phylum and Zygomycota · See more »

Redirects here:

Division (botany), Division (mycology), List of animal phyla, List of phyla, Philum, Phylum (biology), Phylum (disambiguation), Superphyla, Superphylum.


[1] https://en.wikipedia.org/wiki/Phylum

Hey! We are on Facebook now! »