Английская Википедия:Hemicyclaspis

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Шаблон:Short description Шаблон:Automatic taxobox

Hemicyclaspis (Шаблон:Lit or 'semicircle plate') is an extinct genus of primitive jawless fish, closely related to Cephalaspis, that lived in the Late Silurian (Pridoli)[1] to Devonian period in what is now Europe and North America. A typical cephalaspid, Hemicyclaspis had a heavily armored, shovel-shaped headshield. It is thought to have been a better swimmer than most of its relatives because of its powerful tail, stabilizing dorsal fin and the keel-shaped hydrodynamic edges of its head shield. Hemicyclaspis probably foraged the ocean floor for food.[2]

Hemicyclaspis grew to a length of 5 inches (13 centimeters) and would most likely have fed on particles from the muddy sea bed.

Файл:Hemicyclaspis NT small.jpg
Life reconstruction of Hemicyclaspis murchisoni

References

Шаблон:Portal

  • Parker, Steve. Dinosaurus: the complete guide to dinosaurs. Firefly Books Inc, 2003. Pg. 58

Шаблон:Reflist

Шаблон:Osteostraci Шаблон:Taxonbar


Шаблон:Devonian-jawless-fish-stub