Dogsthorpe brick pit (bed 11) (Jurassic of the United Kingdom)

Also known as Peterborough

Where: England, United Kingdom (52.6° N, 0.2° W: paleocoordinates 42.8° N, 9.7° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Sigaloceras enodatum - Kosmoceras phaeinum ammonoid zone, Peterborough Member (Oxford Clay Formation), Middle Callovian (164.7 - 161.2 Ma)

• The Peterborough Member (Sigiloceras enodatum (S. calloviense Zone)–Kosmoceras phaeinum (Peltoceras athleta Zone) ammonite Subzone: late Early–early Late Callovian, Middle Jurassic, previously termed the ‘lower Oxford Clay’. From the "Saurian Zone", likely bed 11.

• bed-level stratigraphic resolution

Environment/lithology: offshore; carbonaceous mudstone

• "accumulated in a wide, shallow (30–50 m deep) epeiric sea"
• "The Lower Oxford Clay is composed predominantly of organic-rich mudstones that on exposure rapidly develop a shale-like fissility" (Hudson & Martill 1991, p. 20-21)

Size class: macrofossils

Preservation: shellbed

Collected by A. N. Leeds in 1907-1908; reposited in the BMNH

Collection methods: quarrying, mechanical

Primary reference: E. T. Leeds. 1908. On Metriorhynchus brachyrhynchus (Deslong) from the Oxford Clay near Peterborough. Quarterly Journal of the Geological Society 64:345-357 [R. Benson/R. Benson/R. Benson]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 133068: authorized by Roger Benson, entered by Roger Benson on 01.09.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Loricata - Metriorhynchidae
Metriorhynchus brachyrhynchus
Metriorhynchus brachyrhynchus Eudes-Deslongchamps 1868 marine crocodile
Skulls: BMNH 3700 (neotype), 3699 - also figured by Andrews (1913)