Hemicyclaspis, armored jawless fish Oviraptor Fellow of Linnean Society

Fellow of Linnean Society

Duckbill ribs

Faint imprints of several dorsal vertebrae are also observed

Triforillonia costellae gen

000�36

Hemicyclaspis, armored jawless fish Oviraptor Fellow of Linnean SocietyHemicyclaspis (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