Bay Ogof Hen 075 ft. (Ordovician of the United Kingdom)

Where: Wales, United Kingdom (51.9° N, 5.3° W: paleocoordinates 68.4° S, 21.5° W)

• local area-level geographic resolution

When: Porth Gain Beds Member (Ogof Hen Formation), Whitlandian (473.8 - 470.7 Ma)

• JA: originally entered as Arenig, but the Ogof Hen Formation is Moridunian. PJW: Porth Gain beds (sometimes put in Porth Gain formation) are Whitlandian.

• bed-level stratigraphic resolution

Environment/lithology: shoreface; lithified, gray, silty siltstone and fine-grained sandstone

• transgressive silt; Grey silty mudstone with fine-grained sandstone layers

Size class: macrofossils

Primary reference: D. E. B. Bates. 1969. Some early Arenig brachiopods and trilobites from Wales. Bulletin of the British Museum of Natural History 18(1):1-28 [A. Miller/P. Novack-Gottshall/J. Ju]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 166752: authorized by Pete Wagner, entered by Pete Wagner on 25.02.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

• Systematics of trilobites, brachiopods, and bivalves
Show authors, comments, and common names
Bivalvia
 Nuculida - Praenuculidae
Praenucula menapiensis
Praenucula menapiensis Hicks 1873 clam
 Nuculanida - Malletiidae
Praearca cambriensis
Praearca cambriensis Hicks 1873 clam
 Actinodontida - Cycloconchidae
Actinodonta ramseyensis
Actinodonta ramseyensis Hicks 1873 clam
 Cyrtodontida - Cyrtodontidae
? Cyrtodonta oboloidea
? Cyrtodonta oboloidea Hicks 1873 clam
 Arcida - Parallelodontidae
Glyptarca primaeva
Glyptarca primaeva Hicks 1873 clam