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*Metriorhynchus sp.*; ilia (2)

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)] A previously uncatalogued specimen - seems more like a metriorhynchid than a steneosaur ilium.

The Adams-Tresman formula for species determination …