Genus
Valid Extinct

Tricleidus

Andrews 1909

Tricleidus is an extinct genus of cryptoclidid plesiosaur known from only specimen from the middle Jurassic of United Kingdom. It was first named by Andrews in 1909 and the type species is Tricleidus seeleyi.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
3
Group
Sauroptérygiens
Carnivore aquatic, depth=surface Marine
Tricleidus
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Tricleidus seeleyi. © G. M. Woodward · Public domain · Wikimedia
Tricleidus
Tricleidus
PBDB ↗ Wikipedia ↗
Classification
Sauropterygia Suborder
›
Plesiosauria Order
›
Plesiosauroidea Superfamily
›
Cryptoclididae Family
›
Tricleidus Genus
Fossil sites 3 geolocated sites
Distribution
Top countries
🇬🇧 United Kingdom
2
🇳🇴 Norway
1
Geological formations
Oxford Clay
2
Temporal distribution
Callovian (165.3–161.5 Ma)
2
Bajocian (170.9–168.2 Ma)
1
Species (1)
Tricleidus seeleyi 165 Ma
Bibliography
Original description
C. W. Andrews. 1909. On some new Plesiosauria from the Oxford Clay of Peterborough. Annals And Magazine of Natural History 4:418-429 DOI ↗
Bibliography (2)
D. S. Brown. 1981. The English Upper Jurassic Plesiosauroidea (Reptilia) and a review of the phylogeny and classification of the Plesiosauria. Bulletin of the British Museum (Natural History) 35(4):253-347
L.-D. Ginsberg and P. Janvier. 1976. Un nouveau gisement à Plésiosaures dans le Jurassique du Spitsbergen (Archipel du Svalbard) [A new locality with plesiosaurs in the Jurassic of Spitzbergen (Svalbard archipelago)]. Årbok Norsk Polarinstitutt 1974:262-265