Where: England, United Kingdom (50.7° N, 3.0° W: paleocoordinates 36.9° N, 1.2° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Blue Lias Formation (Lias Group), Planorbis (201.3 - 196.5 Ma)

• There are several slabs in the collections of the NHM from the lower Hettangian, Planorbis Zone, of Pinhay Bay that most probably come from the same bedding plane. These contain numerous small individuals all with their complement of spines and in a very similar state of preservation as the syntypes. These therefore are treated as topotypes.

• bed-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: macrofossils

Reposited in the BMNH

Primary reference: A. B. Smith. 2015. British Jurassic regular echinoids. Part 1, Introduction, Cidaroida, Echinothurioida, Aspidodiadematoida and Pedinoida. Monograph of the Palaeontographical Society 169(644):1-67 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 195941: authorized by Matthew Clapham, entered by Matthew Clapham on 01.09.2018

Creative Commons license: CC BY (attribution)