Where: England, United Kingdom (52.0° N, 2.2° W: paleocoordinates 38.5° N, 0.7° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Blue Lias Formation (Lias Group), Hettangian (201.3 - 199.3 Ma)

• from the "Ostrea and Lower Saurian Beds", below the "Ammonites planorbis beds"

• bed-level stratigraphic resolution

Environment/lithology: marginal marine; shale

Size classes: macrofossils, mesofossils

Preservation: adpression

Collected by J. Dudfield

Primary reference: T. Wright. 1860. On the Zone of Avicula contorta, and the Lower Lias of the South of England. Quarterly Journal of the Geological Society 16:374-411 [M. Carrano/H. Street]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 149321: authorized by Matthew Carrano, entered by Matthew Carrano on 01.08.2013

Creative Commons license: CC BY (attribution)