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Their age is estimated to be between 500
are related to the extinct Eurypterids
Sclerocephalus was once thought to be closely related to eryopoid temnospondyls
with 16 in Canada
Because their armor was so fragile
Keichousaurus hui, 3 Triassic Marine Reptiles Ouranosaurus Their age is estimated toKeichousaurus hui 3 Triassic Marine Reptiles Keichousaurus hui (KEE chi oh SAUR us) was an early reptile (not a dinosaur) that lived during the Triassic period, roughly 210 million years ago. This specimen is a composite showing 3 specimens as in a mass mortality. Keichousaurus was about 6 11 inches long and had a long neck, a long tail, five toed feet with long digits, and a pointed head with sharp teeth. It may have lived in the water. This
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