Where: Wales, United Kingdom (51.0° N, 3.0° W: paleocoordinates 37.6° N, 3.7° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Arnioceras semicostatum zone, Blue Lias Formation (Lias Group), Early/Lower Sinemurian (196.5 - 189.6 Ma)

• Arnioceras semicostatum Zone, gmuendense Subzone

• formation-level stratigraphic resolution

Environment/lithology: offshore ramp; lithified lime mudstone and poorly lithified marl

Size class: macrofossils

Primary reference: A. Hallam. 1960. A sedimentary and faunal study of the Blue Lias of Dorset and Glamorgan. Philosophical Transactions of the Royal Society, London 243:1-44 [F. Fursich/A. Tomasovych/A. Tomasovych]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 29242: authorized by Franz Fursich, entered by Adam Tomasovych on 27.03.2003

Creative Commons license: CC BY (attribution)