Martinectes

Martinectes; Temporal range: Late Cretaceous (late Campanian), 80.57–78.25 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
	Skeleton mount, University of Michigan Museum of Natural History
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Superorder:	†Sauropterygia
Order:	†Plesiosauria
Family:	†Polycotylidae
Subfamily:	†Polycotylinae
Clade:	†Dolichorhynchia
Genus:	†Martinectes; Clark, O'Keefe & Slack, 2023
Type species
	†Martinectes bonneri; Adams, 1997
Synonyms
	Trinacromerum bonneri ; (Adams, 1997); Dolichorhynchops bonneri ; (O'Keefe, 2008);

Martinectes is an extinct genus of polycotylid plesiosaur from the Late Cretaceous Sharon Springs Formation of the United States. The genus contains a single species M. bonneri, known from multiple skeletons and skulls. Martinectes was historically considered to represent a species of the genus Trinacromerum and later Dolichorhynchops before it was moved to its own genus.^[1] It was a large polycotylid measuring around 6–7 metres (20–23 ft) long.

^ Clark, Robert O.; O’Keefe, F. Robin; Slack, Sara E. (2023-12-24). "A new genus of small polycotylid plesiosaur from the Upper Cretaceous of the Western Interior Seaway and a clarification of the genus Dolichorhynchops". Cretaceous Research. 157: 105812. doi:10.1016/j.cretres.2023.105812. ISSN 0195-6671.

[Martinectes-1] Clark, Robert O.; O’Keefe, F. Robin; Slack, Sara E. (2023-12-24). "A new genus of small polycotylid plesiosaur from the Upper Cretaceous of the Western Interior Seaway and a clarification of the genus Dolichorhynchops". Cretaceous Research. 157: 105812. doi:10.1016/j.cretres.2023.105812. ISSN 0195-6671.

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