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Description: | Peterborough [district, Cambridgeshire], [England] [probably ex.] [Bed 10 (Hudson & Martill, 1994)], Oxford Clay [Formation, Peterborough Member, ("Gryphaea and Reptile Beds")], [*Kosmoceras jason jason* Zone],[Middle Callovian], [Jurassic (Middle)] .....phalangeal fragments (2), ribs (2 - 1 cervical?); pubis (L), ischia (L & R/2), ilia (2); unidentified bone fragment embedded in concretion/cemented clay.
Young nature of the individual makes identification difficult - specimen is so young that its coracoid seems even more under-developed than the one selected for illustration by Andrews as an example of an immature shoulder girdle! However it would seem to indicate that it was a plesiosaur rather than a pliosaur - as does the horn form of the ilia. And yet the second unidentified rib (which shows signs of possible crushing/tooth damage) looks almost double-headed - and possibly from a much older individual, judging by the bone surface. At any rate, this specimen requires further analysis, as the possible skull bones need to be identified. The left pubis has far more elasmosaurid than cryptoclidid character to it - needs to be confirmed.
Medial end of right ischium was previously (presumably accidentally!!) labelled as a right scapula fragment!! | License: | http://www.hmag.gla.ac.uk/spirit/rights/ | Publisher: | Hunterian Museum and Art Gallery, University of Glasgow | Rights holder: | Hunterian Museum and Art Gallery, University of Glasgow | Subjects: | VERTTETRREPTIL : PLESIELAS? : BIOPATH : ICHNOMARK : FOSSIL : | Source: | Hunterian Museum | Creator: | Hunterian Museum and Art Gallery, University of Glasgow | Identifier: | http://www.huntsearch.gla.ac.uk/cgi-bin/... | Language: | en-GB | Go to resource |
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