Camnant Cliff Section (Ordovician of the United Kingdom)

Where: Wales, United Kingdom (52.2° N, 3.4° W: paleocoordinates 58.7° S, 18.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Didymograptus artus graptolite zone, Camnant Mudstone Formation, Abereiddian (468.0 - 461.1 Ma)

• formation-level stratigraphic resolution

Environment/lithology: shoreface; mudstone and sandstone

• The bivalve faunas are found in close association with volcanic and volcaniclastic rocks indicating that the Camnant Formation was deposited was deposited relatively near-shore around volcanic islands.
• The Camnant Mudstone Formation is composed predominantly of mudstones in it's lower portion. The upper potion of the formation, which lies low in the D. murchisoni biozone, is mudstone interlayered with sandstone and thin tuffs. Collections are taken from the lenticular, discontinuous sandstone horizons.

Size class: macrofossils

Collection methods: quarrying, surface (float), surface (in situ),

Primary reference: J. C. W. Cope. 1999. Middle Ordovician bivalves from Mid-Wales and the Welsh Borderland. Palaeontology 42(3):467-499 [A. Miller/R. Krause/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 232330: authorized by Pete Wagner, entered by Pete Wagner on 08.11.2023

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Nuculida - Praenuculidae
Arcodonta regularis n. gen. n. sp.
Arcodonta regularis n. gen. n. sp. Cope 1999 clam
 Nuculida - Cardiolariidae
Praeleda multidentata n. sp.
Praeleda multidentata n. sp. Cope 1999 clam