Pikaia gracilens is an extinct, primitive chordate animal known from the Middle Cambrian Burgess Shale of British Columbia. Described in 1911 by Charles...

Pikaia! (ピカイア!) is a Japanese educational anime series produced by NHK Educational. The first season started airing on April 29, 2015 for 13 episodes before...

and Myllokunmingia, also from the Chengjiang fauna, are regarded as fish. Pikaia, discovered much earlier (1911) but from the Mid Cambrian Burgess Shale...

gnathostomatans a little more confusing, as it was roughly contemporary with Pikaia. As Pikaia did not have gill bars, unlike Branchiostoma, there are two possible...

between 538 and 485 million years ago. The first Cambrian chordate known is Pikaia gracilens, a lancelet-like animal from the Burgess Shale in British Columbia...

and Myllokunmingia, also from the Chengjiang fauna, are regarded as fish. Pikaia, discovered much earlier but from the Mid Cambrian Burgess Shale, is also...

stalked eyes, and a fused proboscis tipped with a claw-like appendage. Pikaia was a stem-chordate from the Middle Cambrian Protichnites were the trackways...

1144/jgs2017-103. ISSN 0016-7649. S2CID 135091168. Shu, DG., Morris, S. & Zhang, XL. A Pikaia-like chordate from the Lower Cambrian of China. Nature 384, 157–158 (1996)...

Africa. It is known from a single, 11 mm long specimen found in black shale. Pikaia Cathaymyrus Oelofsen, B. W., and J. C. Loock. "A FOSSIL CEPHALOCHORDATE...

chordates have been suggested to be closely related to lancelets, including Pikaia and Cathaymyrus from the Cambrian and Palaeobranchiostoma from the Permian...

neurocranium for elevation during suction feeding. Published information on Pikaia gracilens (a well-known Cambrian era fossil) explains evolution of swimming...

be invertebrate forerunners of the true vertebrates — proto-chordates. Pikaia has been heavily promoted as the oldest fossil protochordate." Richard Dawkins...

openings on the side of the body being used to expel water. Metaspriggina Pikaia Xianguang, Hou; RamsköLd, Lars; BergströM, Jan (October 1991). "Composition...

Archived from the original on April 30, 2023. Retrieved April 30, 2023. Pikaia! seasons: Season 1: ピカイア![シリーズ]. Media Arts Database (in Japanese). Agency...

Although some paleontologists regard it as an early chordate allied with Pikaia et al., Conway Morris suggested in 1993 that it might be a Cambrian descendant...

the ancestor of the fishes, or was probably closely related to it, was Pikaia. It had a primitive notochord, a structure that could have developed into...

speciation – phenotype – phylogenetics – phylogeny – phylogenetic tree – Pikaia – Plant evolution – polymorphism (biology) – population – population bottleneck...

(2015) Ghost in the Shell: Arise (2015) Attack on Titan: Junior High (2015) Pikaia! (2015) Ghost in the Shell Arise – Alternative Architecture (2015) Joker...

similar morphology Ostracoderm Arandaspis Other basal Cambrian chordates: Pikaia – Cambrian chordate Myllokunmingia – close relative Zhongjianichthys – eel-like...

Evolution of fish Fish Timeline of fish evolution Forerunners Basal member †Pikaia Cephalochordate †Cathaymyrus Lancelet Olfactores †Haikouella Tunicate †Myllokunmingiidae...

anglais), dinosaurs and other ancient creatures such as Hallucigenia and Pikaia, and subjects from fantasy and games (Hero, Mi-Go, Buer), many of which...

now viewed as analogous, convergent, or from a different lineal origin. Pikaia appears to have a proto-notochord, and notochords are present in several...

Evolution of fish Fish Timeline of fish evolution Forerunners Basal member †Pikaia Cephalochordate †Cathaymyrus Lancelet Olfactores †Haikouella Tunicate †Myllokunmingiidae...

Evolution of fish Fish Timeline of fish evolution Forerunners Basal member †Pikaia Cephalochordate †Cathaymyrus Lancelet Olfactores †Haikouella Tunicate †Myllokunmingiidae...

Evolution of fish Fish Timeline of fish evolution Forerunners Basal member †Pikaia Cephalochordate †Cathaymyrus Lancelet Olfactores †Haikouella Tunicate †Myllokunmingiidae...

to be invertebrate forerunners of the true vertebrates — protochordates. Pikaia has been heavily promoted as the oldest fossil protochordate." Morris SC...

Retrieved 2023-07-07. Tom McNamara (2020-01-18). "Galapagos Evolved: Land-based Pikaia Lodge embraces green living". Vancouver Sun. Pinnacle Rock, Galapagos. Retrieved...

being discovered that lack such cuticle, such as the probable chordate Pikaia and the shellless Odontogriphus. It is a common misconception that anaerobic...

orders that are located in the Phylum Chordata. Order Amphioxiformes Genus Pikaia † Order Enterogona Order Pleurogona Order Aspiraculata Order Doliolida Order...

Evolution of fish Fish Timeline of fish evolution Forerunners Basal member †Pikaia Cephalochordate †Cathaymyrus Lancelet Olfactores †Haikouella Tunicate †Myllokunmingiidae...