Hemicyclaspis, armored jawless fish Oviraptor The holotype is a fragmentary

The holotype is a fragmentary specimen with a Charnia masoni like structure

Fellow of Linnean Society

Brachiosaurus

Its closest living relative is Araucaria bidwellii

Hemicyclaspis, armored jawless fish Oviraptor The holotype is a fragmentaryHemicyclaspis (meaning half round shield or semicircle plate) is an extinct genus of primitive jawless fish, closely related to Cephalaspis, that lived in the 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