Ilminster (Marlstone Rock-bed, GSM) (Jurassic of the United Kingdom)

Where: Somerset, United Kingdom (50.9° N, 2.9° W: paleocoordinates 38.1° N, 6.4° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: macrofossils

Reposited in the BGS

Primary reference: D. V. Ager. 1956. A Monograph of the British Liassic Rhynchonellidae, Part I 1-50 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 38104: authorized by Martin Aberhan, entered by Sabine Nürnberg on 12.04.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Rhynchonellida - Tetrarhynchiidae
Quadratirhynchia crassimedia n. sp. Buckman 1917