Where: Somerset, United Kingdom (51.0° N, 2.8° W: paleocoordinates 38.1° N, 6.5° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Marlstone Rock-bed Formation, Spinatum (189.6 - 183.0 Ma)

• As there are now (c. 1954) no good exposures in the type area, it is impossible to ascertain the exact horizon of the species there.

Environment/lithology: lithified limestone

Size class: macrofossils

Reposited in the BGS

Primary reference: D. V. Ager. 1954. The genus Gibbirhynchia in the British Domerian. Proceedings of the Geologists' Association 65:25-51 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 138187: authorized by Matthew Clapham, entered by Matthew Clapham on 06.01.2013

Creative Commons license: CC BY (attribution)