Peterborough area, Porter Collection (Jurassic of the United Kingdom)

Where: England, United Kingdom (52.6° N, 0.2° W: paleocoordinates 42.4° N, 9.8° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Peterborough Member (Oxford Clay Formation), Callovian (166.1 - 163.5 Ma)

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

Collected by Henry Porter

Collection methods: quarrying, mechanical,

• CAMSM, Sedgwick Museum, Cambridge

Primary reference: H. G. Seeley. 1869. Index to the Fossil Remains of Aves, Ornithosauria, and Reptilia, from the Secondary System of Strata, Arranged in the Woodwardian Museum of the University of Cambridge. Deighton, Bell, and Co, Cambridge 1-143 [M. Carrano/M. Carrano/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 119669: authorized by Roger Benson, entered by Roger Benson on 30.10.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Plesiosauria - Pliosauridae
"Plesiosaurus philarchus n. sp." = Peloneustes philarchus
"Plesiosaurus philarchus n. sp." = Peloneustes philarchus Seeley 1869 plesiosaur
CAMSM J.46913 (holotype partial skeleton)
 Loricata - Teleosauridae
? Steneosaurus sp., Steneosaurus dasycephalus n. sp.
? Steneosaurus sp. Saint-Hilaire 1825 marine crocodile
partial skull and four cervical vertebrae
Steneosaurus dasycephalus n. sp. Seeley 1869 marine crocodile
basioccipital, vertebrae and femora