Thalattosaurus is an extinct genus of marine reptile in the family Thalattosauroidea. Known exclusively from the Triassic period, it was a 2–3 metres long shellfish-eating diapsid with paddle-like lim
The Hosselkus Limestone where remains of Thalattosaurus have been found
Reconstruction of T. alexandrae
Original reconstruction of T. alexandrae skull by Merriam in 1905 incorrectly portraying a straight snout
Thalattosaurus (left) with relative Nectosaurus (right) hunting shellfish.