Bivalve-M. nucula Assoc., Lower Bringewood equivalent, Cennen Valley (Silurian of the United Kingdom)

Where: Wales, United Kingdom (52.0° N, 4.0° W)

• Paleocoordinates: 13.6° S, 52.7° W (Wright 2013)

• coordinate based on political unit

• local area-level geographic resolution

When: Gorstian (427.4 - 425.6 Ma)

• Lower Bringewood equivalents (Grammysia Beds).

• formation-level stratigraphic resolution

Environment/lithology: marine; siliciclastic sediments

• "Interdistributary bay environment with a transported faunal assemblage from shallow nearshore waters probably with abnormal salinity. The brachiopods indicate a BA 2 assignment, while the bivalves although permissively consistent with it are less certain and might get into BA 1."
• [None given. See geology comments. These, together with the fact that most PBDB collections from Lower Bringewood Beds are siltstones, suggests siliciclastic lithology.]

Size class: macrofossils

Collection methods: Percent abundances are given. Author believes assemblage to be transported.

Primary reference: J. D. Lawson. 1999. Atkins' Lower Bringewood associations of Wales and the Welsh Borderland. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 380-387 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 23173: authorized by Michael Foote, entered by Michael Foote on 10.07.2002

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Ostreida - Pterineidae
Pteronitella sp.
Pteronitella sp. Billings 1874 oyster
 Cardiidia - Grammysiidae
Grammysia sp.
Grammysia sp. de Verneuil 1847 clam
  -
"Pelecypoda indet." = Bivalvia
"Pelecypoda indet." = Bivalvia Linnaeus 1758 clam
Rhynchonellata
 Orthida - Dalmanellidae
Dalmanellidae indet.
Dalmanellidae indet. Schuchert 1913
 Orthida - Draboviidae
Salopina lunata
Salopina lunata Sowerby 1839
 Rhynchonellida - Trigonirhynchiidae
Microsphaeridiorhynchus nucula
Strophomenata
 Strophomenida - Strophochonetidae
Protochonetes ludloviensis