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34 relations: Acorn worm, Alberta, Branchiostoma, British Columbia, Burgess Shale, Cambrian, Cephalization, Cephalochordate, Charles Doolittle Walcott, Chengjiang County, Chordate, Crown group, Cuticle, Eel, Graptolithina, Hagfish, Haikouichthys, Hemichordate, Lancelet, Metaspriggina, Myllokunmingia, Myomere, Myotome, Notochord, Paleontology, Phyllopod bed, Pika Peak, Polychaete, Precambrian, Simon Conway Morris, Stephen Jay Gould, Tentacle, Tunicate, Vertebrate.
Acorn worm
The acorn worms or Enteropneusta are a hemichordate class of invertebrates consisting of one order of the same name.
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Alberta
Alberta is a western province of Canada.
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Branchiostoma
Branchiostoma is one of the few living genera of lancelets (order Amphioxiformes).
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British Columbia
British Columbia (BC; Colombie-Britannique) is the westernmost province of Canada, located between the Pacific Ocean and the Rocky Mountains.
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Burgess Shale
The Burgess Shale is a fossil-bearing deposit exposed in the Canadian Rockies of British Columbia, Canada.
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Cambrian
The Cambrian Period was the first geological period of the Paleozoic Era, and of the Phanerozoic Eon.
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Cephalization
Cephalization is an evolutionary trend in which, over many generations, the mouth, sense organs, and nerve ganglia become concentrated at the front end of an animal, producing a head region.
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Cephalochordate
A cephalochordate (from Greek: κεφαλή, "head" and χορδή, "chord") is an animal in the chordate subphylum, Cephalochordata.
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Charles Doolittle Walcott
Charles Doolittle Walcott (March 31, 1850 – February 9, 1927) was an American paleontologist, administrator of the Smithsonian Institution from 1907 to 1927, and geologist.
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Chengjiang County
Chengjiang County (Chinese: officially 澂江县; often spelled 澄江县;; earlier Tchinkiang) is in Yuxi, Yunnan Province, China, just north of Fuxian Lake.
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Chordate
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.
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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.
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Cuticle
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.
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Eel
An eel is any ray-finned fish belonging to the order Anguilliformes, which consists of four suborders, 20 families, 111 genera and about 800 species.
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Graptolithina
Graptolithina is a subclass of the class Pterobranchia, the members of which are known as graptolites.
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Hagfish
Hagfish, the class '''Myxini''' (also known as Hyperotreti), are eel-shaped, slime-producing marine fish (occasionally called slime eels).
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Haikouichthys
Haikouichthys is an extinct genus of craniate (animals with notochords and distinct heads) believed to have lived 525 million years ago, during the Cambrian explosion of multicellular life.
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Hemichordate
Hemichordata is a phylum of marine deuterostome animals, generally considered the sister group of the echinoderms.
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Lancelet
The lancelets — also known as amphioxi (singular, amphioxus) consist of about 32 species of fish-like marine chordates in the order Amphioxiformes.
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Metaspriggina
Metaspriggina is a genus of chordate initially known from two specimens in the Middle Cambrian Burgess Shale and 44 specimens found in 2012 at the Marble Canyon bed in Kootenay National Park.
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Myllokunmingia
Myllokunmingia is a genus of basal chordate from the Lower Cambrian Maotianshan shales of China, thought to be a vertebrate, although this is not conclusively proven.
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Myomere
Myomere are the blocks of skeletal muscle tissue found commonly in chordates.
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Myotome
A myotome is the group of muscles that a single spinal nerve innervates.
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Notochord
In anatomy, the notochord is a flexible rod made out of a material similar to cartilage.
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Paleontology
Paleontology or palaeontology is the scientific study of life that existed prior to, and sometimes including, the start of the Holocene Epoch (roughly 11,700 years before present).
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Phyllopod bed
The Phyllopod bed, designated by USNM locality number 35k, is the most famous fossil-bearing member of the Burgess shale fossil Lagerstätte.
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Pika Peak
Pika Peak is a mountain located between Mount Richardson and Ptarmigan Peak in Banff National Park.
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Polychaete
The Polychaeta, also known as the bristle worms or polychaetes, are a paraphyletic class of annelid worms, generally marine.
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Precambrian
The Precambrian (or Pre-Cambrian, sometimes abbreviated pЄ, or Cryptozoic) is the earliest part of Earth's history, set before the current Phanerozoic Eon.
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Simon Conway Morris
Simon Conway Morris (born 1951) is an English palaeontologist, evolutionary biologist, and astrobiologist known for his study of the fossils of the Burgess Shale and the Cambrian explosion.
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Stephen Jay Gould
Stephen Jay Gould (September 10, 1941 – May 20, 2002) was an American paleontologist, evolutionary biologist, and historian of science.
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Tentacle
In zoology, a tentacle is a flexible, mobile, elongated organ present in some species of animals, most of them invertebrates.
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Tunicate
A tunicate is a marine invertebrate animal, a member of the subphylum Tunicata, which is part of the Chordata, a phylum which includes all animals with dorsal nerve cords and notochords.
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Vertebrate
Vertebrates comprise all species of animals within the subphylum Vertebrata (chordates with backbones).
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References
[1] https://en.wikipedia.org/wiki/Pikaia
