Dolichorhynchops
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Dolichorhynchops is an extinct genus of polycotylid plesiosaur from the Late Cretaceous of North America, containing the species D. osborni and D. herschelensis, with two previous species having been
Plesiosaurus
Mounted skeleton of the holotype of D. osborni (from Williston, 1903), in the University of Kansas Museum of Natural History
Skeleton in Canadian Fossil Discovery Centre
D. osborni in Vienna
Martinectes
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Martinectes is an extinct genus of polycotylid plesiosaur from the Late Cretaceous of North America and possibly European Russia. The genus contains a single species M. bonneri, known from multiple sk
Dolichorhynchops
…Everhart (2017) suggested that KUVP 40001 would have measured up to 6–7 metres (20–23 ft) in length. A 2023 study assigns D. bonneri to a new genus, Martinectes. Other specimens previously reported as D. osborni by Carpenter 1996 (UNSM 50133 and AMNH 5834) were also referred to this taxon. D. tropicensis was…
Martinectes UMMNH
Placochelys BW
Nothosaurus BW
Leptocleidus BW