Eosaurichthys
Extinct genus of fishes
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Eosaurichthys ("dawn Saurichthys") is an extinct genus, or potentially subgenus, of marine saurichthyid ray-finned fish that lived during the late Permian epoch (Changhsingian age) to potentially the Early Triassic epoch (Olenekian).[1] It is one of the earliest saurichthyid genera known from the fossil record. If E. madagascariensis is a member of this genus, then it appears to have survived the Permian-Triassic extinction event.
| Eosaurichthys Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | †Saurichthyiformes |
| Family: | †Saurichthyidae |
| Genus: | †Eosaurichthys Liu & Wei, 1988 |
| Type species | |
| Eosaurichthys chaoi Liu & Wei, 1988 | |
| Species | |
| |
Eosaurichthys is often treated as a subgenus of Saurichthys rather than a genus, with its type species referred to as Saurichthys (Eosaurichthys) chaoi.[2]
Up to two species are known:[2][3]
- E. chaoi Liu & Wei, 1988 - Late Permian (Changhsingian) of China (Changxing Formation)
- E. madagascariensis (Piveteau, 1945) - Early Triassic (Olenekian) of Madagascar (Sakamena Formation)[4][5]
Saurichthyid remains tentatively referred to E. madagascariensis are known from Anisian-aged freshwater beds of the Yerrapalli Formation in India.[3]
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