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"(A fish that) had a compressed claviform body, posterior dorsal fins nearly opposite to the anus, prolonged upper tail-lobe, and well-developed spines in front of the fins."-Whitney, 1902

Acanthoclinus

"(A fish that) had a compressed claviform body, posterior dorsal fins nearly opposite to the anus, prolonged…

The prehistoric armored fish, Pterichthys milleri.

Pterichthys Milleri

The prehistoric armored fish, Pterichthys milleri.