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40 relations: Academic Press, Archaeothyris, Carboniferous, Caseasauria, Caseidae, Clade, Cladogram, Cutleria (animal), Dimetrodon, Dinosaur, Edaphosauridae, Edaphosaurus, Frontal bone, Haptodus, Herbivore, Mammal, Michel Laurin, Monitor lizard, Ophiacodontidae, Orbit (anatomy), Palaeohatteria, Pantelosaurus, Pelycosaur, Pennsylvanian (geology), Permian, Permian–Triassic extinction event, Pig, Protoclepsydrops, Rhinoceros, Robert R. Reisz, Skull, Sphenacodontia, Sphenacodontidae, Sphenacodontoidea, Synapomorphy and apomorphy, Synapsid, Therapsid, Tree of Life Web Project, Triassic, Varanopidae.
Academic Press
Academic Press is an academic book publisher.
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Archaeothyris
Archaeothyris is an extinct genus of ophiacodontid synapsids that lived during the Late Carboniferous and is known from Nova Scotia.
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Carboniferous
The Carboniferous is a geologic period and system that spans 60 million years from the end of the Devonian Period million years ago (Mya), to the beginning of the Permian Period, Mya.
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Caseasauria
Caseasauria is one of the two main clades of early synapsids, the other being the Eupelycosauria.
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Caseidae
Caseidae is an extinct family of synapsids from the Carboniferous and Permian period.
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Clade
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".
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Cladogram
A cladogram (from Greek clados "branch" and gramma "character") is a diagram used in cladistics to show relations among organisms.
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Cutleria (animal)
Cutleria is an extinct genus of basal sphenacodontids or derived stem-sphenacodontoid known from the Early Permian period (Sakmarian stage) of the Colorado, United States.
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Dimetrodon
Dimetrodon (or, meaning "two measures of teeth") is an extinct genus of synapsids that lived during the Cisuralian (Early Permian), around 295–272 million years ago (Ma).
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Dinosaur
Dinosaurs are a diverse group of reptiles of the clade Dinosauria.
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Edaphosauridae
Edaphosauridae is a family of mostly large (up to 3 meters or more) Late Carboniferous to Early Permian synapsids.
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Edaphosaurus
Edaphosaurus (meaning "pavement lizard" for dense clusters of teeth) is a genus of extinct edaphosaurid synapsid that lived around 300 to 280 million years ago, during the late Carboniferous to early Permian periods.
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Frontal bone
The frontal bone is a bone in the human skull.
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Haptodus
Haptodus is an extinct genus of basal sphenacodonts, a clade that includes therapsids and hence, mammals.
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Herbivore
A herbivore is an animal anatomically and physiologically adapted to eating plant material, for example foliage, for the main component of its diet.
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Mammal
Mammals are the vertebrates within the class Mammalia (from Latin mamma "breast"), a clade of endothermic amniotes distinguished from reptiles (including birds) by the possession of a neocortex (a region of the brain), hair, three middle ear bones, and mammary glands.
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Michel Laurin
Michel Laurin is a vertebrate paleontologist whose specialties include the emergence of a land-based lifestyle among vertebrates, the evolution of body size, and the origin and phylogeny of lissamphibians.
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Monitor lizard
The monitor lizards are large lizards in the genus Varanus.
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Ophiacodontidae
Ophiacodontidae is an extinct family of early eupelycosaurs from the Carboniferous and Permian.
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Orbit (anatomy)
In anatomy, the orbit is the cavity or socket of the skull in which the eye and its appendages are situated.
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Palaeohatteria
Palaeohatteria is an extinct genus of basal sphenacodonts known from the Early Permian period (Sakmarian stage) of Saxony, Germany.
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Pantelosaurus
Pantelosaurus (meaning "complete lizard") is an extinct genus of basal sphenacodonts known from the Early Permian period (Asselian stage) of Saxony, Germany.
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Pelycosaur
The pelycosaurs (from Greek πέλυξ pelyx 'wooden bowl' or 'axe' and σαῦρος sauros 'lizard') are an informal grouping (previously considered an order) composed of basal or primitive Late Paleozoic synapsids, sometimes erroneously referred to as "mammal-like reptiles".
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Pennsylvanian (geology)
The Pennsylvanian (also known as Upper Carboniferous or Late Carboniferous) is, in the ICS geologic timescale, the younger of two subperiods (or upper of two subsystems) of the Carboniferous Period.
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Permian
The Permian is a geologic period and system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic period 251.902 Mya.
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Permian–Triassic extinction event
The Permian–Triassic (P–Tr or P–T) extinction event, colloquially known as the Great Dying, the End-Permian Extinction or the Great Permian Extinction, occurred about 252 Ma (million years) ago, forming the boundary between the Permian and Triassic geologic periods, as well as the Paleozoic and Mesozoic eras.
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Pig
A pig is any of the animals in the genus Sus, within the even-toed ungulate family Suidae.
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Protoclepsydrops
Protoclepsydrops is an extinct genus of early synapsids, found in Joggins, Nova Scotia.
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Rhinoceros
A rhinoceros, commonly abbreviated to rhino, is one of any five extant species of odd-toed ungulates in the family Rhinocerotidae, as well as any of the numerous extinct species.
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Robert R. Reisz
Robert Rafael Reisz is a Canadian paleontologist and specialist in the study of early amniote and tetrapod evolution.
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Skull
The skull is a bony structure that forms the head in vertebrates.
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Sphenacodontia
Sphenacodontia is a stem-based clade of derived synapsids.
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Sphenacodontidae
Sphenacodontidae (Greek: "wedge point tooth family") is an extinct family of small to large, advanced, carnivorous, Late Pennsylvanian to middle Permian pelycosaurs.
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Sphenacodontoidea
Sphenacodontoidea is a node-based clade that defined to include the most recent common ancestor of the Sphenacodontidae and the Therapsida and their descendants (including mammals).
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Synapomorphy and apomorphy
In phylogenetics, apomorphy and synapomorphy refer to derived characters of a clade – characters or traits that are derived from ancestral characters over evolutionary history.
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Synapsid
Synapsids (Greek, 'fused arch'), synonymous with theropsids (Greek, 'beast-face'), are a group of animals that includes mammals and every animal more closely related to mammals than to other living amniotes.
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Therapsid
Therapsida is a group of synapsids that includes mammals and their ancestors.
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Tree of Life Web Project
The Tree of Life Web Project is an Internet project providing information about the diversity and phylogeny of life on Earth.
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Triassic
The Triassic is a geologic period and system which spans 50.6 million years from the end of the Permian Period 251.9 million years ago (Mya), to the beginning of the Jurassic Period Mya.
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Varanopidae
Varanopidae is an extinct family of synapsid "pelycosaurs" that resembled monitor lizards and might have had the same lifestyle, hence their name.
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References
[1] https://en.wikipedia.org/wiki/Eupelycosauria
