Pterosphenus
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Pterosphenus is an extinct genus of marine snake of the Eocene period.
Pterosphenus
Boavus idelmani Holotype AMNH
Palaeophis
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Palaeophis is an extinct genus of marine snake that is the type genus of the extinct snake family Palaeophiidae.
Pterosphenus
…snakes, a clade which includes all snakes outside of blind and thread snakes, and more specifically to the extinct Palaeophiidae. Its closest relative is Palaeophis, of which both belong to the subfamily Palaeophiinae. Six species are known, P. schucherti from United States(Alabama, Arkansas, Florida, Georgia…
Palaeophiidae Palaeophis maghrebianus
Restoration of Palaeophis maghrebianus
Illustration of articulated vertebrae of P. toliapicus from Sheppy and Bracklesham, England, UK