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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)] Cervical ribs bear the prominent anterior flange that is used to diagnose muraenosaurs, in particular *Muraenosaurus beloclis* - although *Muraenosaurus leedsii* can exhibit this on rare occasions. With only two clear anterior cervical ribs, the diagnosis cannot be certain - and this feature is not the strongest characteristic for identification of muraenosaurs. There are some signs of pathological bone damage, with callus regrowth, particularly on one of the pyritic ventral ribs. One of the repaired bones shows signs of (bite?)crushing of its distal end. One of the neural arch fragments (a pectoral) is so large, and has such a large amount of shell-bed material, that it really looks far more like it should belong with specimen V1694.
Specimens of 'V1840' rib on loan for teaching (JKI) under Wendy House are to be compared to this material, to see if they belong together. 19/2/99 - very similar morphology, but slightly different tone on the bone surface - joins might be possible (although 'V1840' appears to be a virtually complete dorsal rib), but only once fragments of erupted V1686 surface were reassembled. | 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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