Crymocetus
| Crymocetus Temporal range:
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| Genus: | †Crymocetus Cope,1869
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| Type species | |
| †Crymocetus bernardi Cope, 1869
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Crymocetus(meaning "cold sea monster" ) is anextinctgenus ofplesiosaurfrom theLate CretaceousChalk GroupofSussex,England.[1]It is only known from the type species, which isC. bernardi.[2]
Discovery and naming
[edit]The holotype consists of a single posteriorcervical vertebrawhich was discovered in theChalk GroupinSussex,England.It was first named asPlesiosaurusbernardibyOwen(1850).[3]However,Cope(1869) re-studied the holotype and decided thatP. bernardiwarranted its own genus, which he namedCrymocetus.[2]
After Cope (1869) was published, nearly all subsequent authors tended to disregard the nameCrymocetus,withLydekker(1889) synonymisingCrymocetuswithCimoliasaurus.[4]
In any case,Crymocetusis in need of restudy along with other plesiosaurs from theCretaceousdeposits ofEngland.
Classification
[edit]Cope(1869)[2]initially classifiedCrymocetuswithinElasmosauridae,whileWelles(1962)[5]and Persson (1963)[6]instead consideredCrymocetusto be either a member of thePliosauridaeorRhomaleosauridae.Crymocetusis today classified withinPlesiosauriaincertae sedis.
See also
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References
[edit]- ^A. S. Romer. (1966). Vertebrate Paleontology, 3rd edition 1-468.
- ^abcE. D. Cope. (1869). On the reptilian orders Pythonomorpha and Streptosauria.Proceedings of the Boston Society of Natural History12:251-266
- ^Owen, R., (1850), Description of the Fossil Reptiles of the Chalk Formation.
- ^Lydekker., R., (1889), Catalogue of the fossil Reptilia and Amphibia in the British Museum (Natural History). Part II. Containing the orders Ichthyopterygia and Sauropterygia:London, Printed by Order of the Trustees of the British Museum,p. 307pp.
- ^Welles, S. P., (1962), A new Species of Elasmosaur from the Aptian of Colombia and a review of the Cretaceous Plesiosaurs:University of California Publications Bulletin Department of Geological Sciences,v. 44, p. 1-89.
- ^Perrson, P. O., (1963), A revision of the classification of the Plesiosauria with a synopsis of the Stratigraphical and geographical distribution of the Group:Lunds Universitets Arksskrift.N. F. Avd. 2, band 59, n 1, p. 60.
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