Ateleaspis
Ateleaspis is an extinct genus of primitive ostracoderm fish that lived in the Early Silurian to Early Devonian periods. Like other ostracoderms, Ateleaspis had a head shield similar to that of Cephalaspis. Species from Silurian period were found in Norway and Scotland, but now has been found also in Siberia from Early Devonian period.
| Ateleaspis Temporal range: early Silurian to Early Devonian | |
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| Ateleaspis tessellata | |
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| Genus: | †Ateleaspis Traquair, 1899 |
| Species: | A. tessellata |
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| †Ateleaspis tessellata Traquair, 1899 | |
Description
Ateleaspis possibly is the most basal vertebrate with paired fins. Ateleaspis was a small fish (about 15 – 20 cm) and had a flat headshield a narrow trunk covered by brick-like scales.
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References
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