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Duckbill ribs
Conchoraptor Skull in matrix
800 calendar years ago
The holotype is a fragmentary specimen with a Charnia masoni like structure
Hemicyclaspis, armored jawless fish Oviraptor Duckbill ribsHemicyclaspis (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
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