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Description: | Farcet Brick Co[mpany]., 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)] ...vomer/parasphenoid, quadrates (2), quadrato-jugals (2.5 - missing shaft of L, + head of another R), basisphenoid, basioccipital, parietals (2), alisphenoids (2), prootics (2), squamosals (2), teeth (21); mid-skull: lacrimals (not visible); lower skull: articulars (2), prearticulars (2), angulars (2), surangulars (2), coronoid (head of L), splenials (2), dentaries (2), teeth (27/23); unplaced teeth (16), sclerotic plates (6 - 2 fused together).
There is an apparent duplicate, in the head of a second right quadrato-jugal.
The Adams-Tresman formula for species determination (width of post-frontals to length of skull) was applied (producing a ratio of 4.33), and the tooth count 27/23 in each maxilla, and over 8cm of a gap between premaxillae and nasals, thus making it clear 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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