Also known as Coniasaurus crassidens holotype locality

Where: England, United Kingdom (50.9° N, 0.2° W: paleocoordinates 39.7° N, 1.6° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Beer Head Limestone Formation (Chalk Group), Early/Lower Cenomanian to Early/Lower Cenomanian (99.6 - 93.5 Ma)

• Formerly Chalk Marl Formation. Woodward (1902) assigned fishes to zone of Holaster subglobosus (Middle-Late Cenomanian), but Jukes-Browne (1903) described the Clayton Limeworks as belonging to the middle part of the Lower Chalk (which included the Chalk Marl) and assigned fishes from Clayton to the earlier zone of Ammonites (Schlotheimia) varians.

• group of beds-level stratigraphic resolution

Environment/lithology: gray chalk

Size class: macrofossils

Collected by H. Catt (H. Willett collection) in c. 1840-1860

Collection methods: quarrying

• Repository: Booth Museum, Brighton, East Sussex, UK collection (acquisitioned in April 1860)

Primary reference: R. Owen. 1850. Descriptions of the fossils of the Chalk Formation. Description of the fossil reptiles of the Chalk Formation. The Geology and Fossils of the Tertiary and Cretaceous Formations of Sussex 378-404 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 118407: authorized by Roger Benson, entered by Roger Benson on 14.10.2011, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)