#50 Bertram's Cave (Carboniferous of the United Kingdom)

Where: England, United Kingdom (52.8° N, 2.0° W: paleocoordinates 7.0° S, 1.6° E)

• outcrop-level geographic resolution

When: D1 zone, lower reef limestones Member (Carboniferous Limestone Formation), Asbian (340.0 - 336.0 Ma)

• member-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified, fine-grained, red, white lime mudstone and lithified, dolomitic, sandy reef rocks

• unweathered rock is pale or white with a distinctive red or lilac tinge. fine grained, consisting almost entirely of microscopic crystals of calcite which give the rock a porcellanous appearance. rock is banded...and represents layers of reef-forming calcareous algae. intercalated within these banded limestones are irregular patches of breccia consisting of large blocks of reef in a matrix of dolomitic sand.

Primary reference: J. E. Prentice. 1951. The Carboniferous Limestone of the Manifold Valley region, north Staffordshire. Quarterly Journal of the Geological Society 106:171-209 [J. Alroy/M. Sommers/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 6067: authorized by John Alroy, entered by Mike Sommers on 21.01.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

• Some unidentified crinoids.
Show authors, comments, and common names
Ostracoda
 Halocyprida - Entomoconchidae
Entomoconchus scouleri
Bivalvia
 Ostreida - Pterineidae
"Leiopteria hirundo" = Leptodesma (Leiopteria)
"Leiopteria hirundo" = Leptodesma (Leiopteria) oyster
 Pectinida - Aviculopectinidae
Aviculopecten plicatus
Rhynchonellata
 Athyridida - Athyrididae
Composita ambigua
 Spiriferida - Spiriferidae
Spirifer plicatosulcatus
 Orthida - Schizophoriidae
Schizophoria resupinata
 Rhynchonellida - Camarotoechiidae
Camarotoechia flexistria
Strophomenata
 Orthotetida - Pulsiidae
Schellwienella crenistria
 Strophomenida - Chonetidae
Chonetes papilionacea