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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)] ...post-frontals (2), vomer/parasphenoid (damaged), quadrates (2), quadrato-jugal (distal 1/2 of R+proximal 1/2 of L), basisphenoid, basioccipital, odontoid, parietals (2), alisphenoids (2), prootics (2), squamosals (2), upper jaw teeth sockets (0/2); lower skull: articulars (2), angulars (2), surangulars (2), coronoids - distal prong of R missing, and L partially fused to surangular), splenials (2), dentaries (2), teeth (7/8); vertebrae: atlas/axis, dorsal (1), neural arch fragments, neural spine fragments; anterior chevron fragments (4); hip girdle: ilium (L), pubis (distal fragment of R), ischia (L+1/2R), femora (R+head and mid-shaft of L).
The Adams-Tresman formula for species determination (width of post-frontals to length of skull) was applied (producing a ratio of 4.22), and the tooth count in each incomplete maxilla would seem to be more than 20 (difficult to tell with so few sockets retaining teeth to define the socket space), thus making it likely that this individual belongs to *Metriorhynchus superciliosus*. | 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 : CROCMETR : 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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