Ateleaspis is an extinct genus of primitive ostracoderm fish that lived in the Silurian period (Wenlock Epoch) to the Lower Devonian.

[1][2] Like other ostracoderms, Ateleaspis had a head shield similar to that of Cephalaspis.

Ateleaspis possibly is the most basal vertebrate with paired fins.

Ateleaspis was a small fish (about 15 – 20 cm) and had a flat headshield and a narrow trunk covered by brick-like scales.

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