Dolichosaurus (meaning "long lizard") is an extinct genus of marine squamate of the Upper Cretaceous Cenomanian chalk deposits of England. It was described and named by Owen in 1850. It is a member of the family Dolichosauridae.Michael W. Caldwell. On the aquatic squamate Dolichosaurus longicollis Owen, 1850 (Cenomanian, Upper Cretaceous), and the evolution of elongate necks in squamates. Journal of Vertebrate Paleontology 20(4):720-735. 2000. doi: https://dx.doi.org/10.1671/0272-4634(2000)020[0720:OTASDL]2.0.CO;2 It was a small reptile measuring long. It had an elongate neck resulting from an increased number of cervical vertebrae.
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