Claxby Beds (Cretaceous of the United Kingdom)

Where: United Kingdom (53.2° N, 0.2° E: paleocoordinates 44.1° N, 9.7° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Claxby Beds Formation (Tealby Series Group), Neocomian (145.0 - 125.8 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, brown, gray, argillaceous, silty ironstone

• The ironstone fades is characterized by the ubiquitous presence, in varying concentrations, of oolitic iron ore embedded in pale-grey to dark-brown, ferruginous silty clays with pink or cream, calcareous, siltstone bands at some levels. These harder bands contain much less oolitic material than the clays, but both rocks may be hardened and secondarily enriched by ferruginous impregnation and by the oxidation of iron salts to limonitic material which occurs commonly as flaky aggregations in irregular veins and as encrusting "iron pan "

Size classes: macrofossils, mesofossils

Reposited in the BMNH

Primary reference: E. F. Owen and R. G. Thurrell. 1968. British Neocomian Rhynchonelloid Brachiopods. Bulletin of the British Museum (Natural History), Geology 16(3):101-122 [M. Clapham/M. Manojlovic/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 153766: authorized by Matthew Clapham, entered by Marko Manojlovic on 13.01.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Rhynchonellida - Cyclothyrididae
"Lamellaerhynchia picteti" = Sulcirhynchia picteti, Lamellaerhynchia walkeri
"Lamellaerhynchia picteti" = Sulcirhynchia picteti Burri 1956
Lamellaerhynchia walkeri Davidson 1882