Bothriolepis canadaensis, armored fish Ouranosaurus This specimen is the largest

This specimen is the largest we have been able to measure and thus may be a record size

sand dollars

5 m) long and weighed roughly 550 pounds (250 kg)

with later finds in New Mexico

The ancient bison

Bothriolepis canadaensis, armored fish Ouranosaurus This specimen is the largestThis becautiful framed replica Bothriolepis was found in Scaumemac Bay, Ontario, Canada and dates from the Middle to Late Devonian. Bothriolepis belongs to a now extinct group of primitive jawed armored fish called Placodermi. Their heads were heavily armored with the rest of the body covered by small scales. The Placoderms are divided into two groups (arthodires and antiarchs). Among the arthrodires were the Dunkleosteus, which had large bony heads