Near Barnwell (Cretaceous of the United Kingdom)

Where: England, United Kingdom (52.2° N, 0.1° E: paleocoordinates 40.6° N, 2.7° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Cambridge Greensand Member (West Melbury Marly Chalk Formation), Late/Upper Albian (105.3 - 99.6 Ma)

• Remanie fauna - reworked from late Albian into early Cenomanian deposits. Faunal assemblage is late Albian in age (age used here). "Although the deposit itself is generally considered to be of late Cretaceous, Cenomanian age, its macrofossil assemblage is thought to be derived largely from the underlying early Cretaceous, Albian, Gault Formation, on the basis of derived ammonites associated with the vertebrate fossils. An early Cenomanian age for deposition of the Cambridge Greensand is based on an apparently autochthonous foraminiferan assemblage, but Morter and Wood (1983) could not rule out the possibility of a very late Albian age due to the presence of the bivalve Aucinella. The age of the derived vertebrates is now considered to be no older than the Callihoplites auritus ammonite subzone and most likely no younger than upper Stoliczkaia dispar Zone, and they are thus of late Albian age." (Martill & Unwin 2011, Cretaceous Research, 10.1016/j.cretres.2011.09.003).

• formation-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lag, glauconitic, micaceous, nodular, phosphatic, green, silty marl

Size class: macrofossils

Preservation: original phosphate

Collected by T. Image in <1851

Collection methods: quarrying,

• Rev. Thomas Image M.A. of Whepstead

Primary reference: R. Owen. 1842. Report on British fossil reptiles, part II. Report of the British Association for the Advancement of Science 11:60-204 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 137412: authorized by Roger Benson, entered by Roger Benson on 17.12.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

• Pterosaurs originally listed by Seeley as "Ornithosauria"; however, all Cambridge Greensand material appears to represent pterodactyloids (Unwin 2001)
 Testudines - Protostegidae
"Chelone pulchriceps n. sp." = Rhinochelys pulchriceps
"Chelone pulchriceps n. sp." = Rhinochelys pulchriceps Owen 1842 sea turtle
CAMSM B55775