Where: England, United Kingdom (50.7° N, 2.9° W: paleocoordinates 37.4° N, 3.8° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Asteroceras obtusum ammonoid zone, Black Ven Marl Member (Charmouth Mudstone Formation), Obtusum (196.5 - 189.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; concretionary siliciclastic sediments

Size classes: macrofossils, mesofossils

Preservation: mold/impression, adpression, concretion

Collected by J. F. Jackson in 1951-1953; reposited in the BMNH

Collection methods: surface (float), acetic,

• Collected by retired geologist James Frederick Jackson and sold to BMNH in the following years

Primary reference: P. E. S. Whalley. 1985. The systematics and palaeogeography of the Lower Jurassic insects of Dorset, England. Bulletin of the British Museum (Natural History), Geology 39(3):107-189 [M. Clapham/J. Karr/M. Clapham]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 114637: authorized by Matthew Clapham, entered by Jered Karr on 18.08.2011

Creative Commons license: CC BY (attribution)