Tetraspidoceras westfieldense Edmunds et al. 2003 (ammonite)

Cephalopoda - Ammonitida - Coeloceratidae

Full reference: M. Edmunds, M. Varah, and A. Bentley. 2003. The ammonite biostratigraphy of the Lower Lias "Armatum Bed" (Upper Sinemurian-Lower Pliensbachian) at St Peter's Field, Radstock, Somerset. Proceedings of the Geologists' Association 114(1):65-96

Belongs to Tetraspidoceras according to M. Edmunds et al. 2003

Sister taxa: Tetraspidoceras loczyi, Tetraspidoceras piobbicoensis, Tetraspidoceras quadrarmatum, Tetraspidoceras reynesi, Tetraspidoceras rhodanicum

Type specimen: OUM J.75000, a shell. Its type locality is Gleviceras Limestone (Bed 1b), St. Peter's Field, Radstock, which is in a Raricostatum carbonate grainstone in the United Kingdom.

Ecology: fast-moving nektonic carnivore

Average measurements (in mm): shell diameter 72.0

Distribution: found only at Gleviceras Limestone (Bed 1b), St. Peter's Field, Radstock

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