Where: Buckinghamshire, United Kingdom (51.8° N, 0.8° W: paleocoordinates 42.6° N, 8.9° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Pavlovia pallasioides ammonoid zone, Hartwell Clay Member (Kimmeridge Clay Formation), Early/Lower Tithonian (150.8 - 145.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified mudstone

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 195997: authorized by Matthew Clapham, entered by Matthew Clapham on 02.09.2018

Creative Commons license: CC BY (attribution)