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Ganoids were ancient fish from the Paleozoic time. The image is of the Cephalaspis Lyellii.

Ganoid

Ganoids were ancient fish from the Paleozoic time. The image is of the Cephalaspis Lyellii.

Ganoids were ancient fish from the Paleozoic time. The image is of the Holoptychius.

Ganoid

Ganoids were ancient fish from the Paleozoic time. The image is of the Holoptychius.

"One of a family of ganoid fishes including the lepidosteids and various extinct forms." -Whitney, 1911

Sauroid

"One of a family of ganoid fishes including the lepidosteids and various extinct forms." -Whitney, 1911

Amphibian Reptiles occur through the age. They are called Labyrinthodonts, because the teeth, like those of the Ganoids, are labyrinthine in the arrangement of the dentine. The earliest traces are tracks found in the Subcarboniferous beds at Pottsville, Pa.; they are about four inches broad.

Sauropus Primaevus

Amphibian Reptiles occur through the age. They are called Labyrinthodonts, because the teeth, like those…

"Ganoid scales of Dapedius." — Encyclopedia Britannica, 1893

Scales

"Ganoid scales of Dapedius." — Encyclopedia Britannica, 1893