|
Date: |
|
Description: | [pit 13 (believed to be Hicks & Gardiner No.3 pit), south of] 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)] ...quadrates (2), basisphenoid, basioccipital, supraoccipital, parietals (2-separate from skull), alisphenoids (2), prootics (2), squamosals (2), upper jaw teeth in sockets (?/?); mid-skull: lacrimals (2); lower skull: articular (L), prearticular (L), angulars (L, with distal tip of R), surangular (L), splenials (2), dentaries (2, some damage to tips of both), teeth (2/1); loose teeth (1); vertebrae: atlas/axis, odontoid, cervical (1); ribs: R atlas.
Detritus from both this specimen and V998 is stored with V998.
The Adams-Tresman formula for species determination (width of post-frontals to length of skull) gives a ratio of at least 3.74, the gap between the premaxillaries and the nasals was hard to determine, but clearly more than 95mm, and the maxillary tooth count was some ???, thus making it unclear whether this individual belongs to *Metriorhynchus superciliosus* or *Metriorhynchus brachyrhynchus* - this is probably why Adams-Tresman has referred to it as *Metriorhynchus sp.*.
The geographical/contextual /historical data are all inferred from this specimen appearing to be Metriorhynchus 169 in the Eyebury Catalogue (as provisionally noted by JKI some 40 years ago!). | 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 |
|
|