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Temporal range: Middle Jurassic, Callovian
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Sauropsida
Superorder: Sauropterygia
Order: Plesiosauria
Suborder: Plesiosauroidea
Family: Cryptoclididae
Genus: Tricleidus
Andrews, 1909
  • T. seeleyi Andrews, 1909 (type)

Tricleidus is an extinct genus of cryptoclidid[1] plesiosaur known from only specimen (BMNH R3539) from the middle Jurassic of United Kingdom.[2] It was first named by Andrews in 1909 and the type species is Tricleidus seeleyi.[2]

See also[edit]


  1. ^ Ketchum, H. F. & Benson, R. B. J. (2010). "Global interrelationships of Plesiosauria (Reptilia, Sauropterygia) and the pivotal role of taxon sampling in determining the outcome of phylogenetic analyses". Biological Reviews. 85: 361–392. PMID 20002391. doi:10.1111/j.1469-185X.2009.00107.x. 
  2. ^ a b Andrews, C. W. (1910). "A Descriptive Catalogue of the Marine Reptiles of the Oxford Clay, Part I". British Museum (Natural History), London, England: 205 pp.