PBDB Collection

Winter Hill, Gastrioceras cumbriense Marine Band, shale Unit 4 (Carboniferous to of the United Kingdom)

Also known as Winter Hill, Gastrioceras cumbriense Marine Band, shale Unit 4, the retreat shales

Where: England, United Kingdom (53.6° N, 2.4° W: paleocoordinates 1.2° S, 6.2° E)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Namurian Series Formation, Pendleian to Pendleian (330.9 - 318.7 Ma)

• The Gastrioceras cumbriense Marine Band generally does not exceed 60cm in thickness. The band is split into five units, the lower barren shales (Unit 1), the advance shales (Unit 2), the acme shales (Unit 3), the retreat shales (Unit 4), and the upper barren shales (Unit 5).

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, gray, silty shale and lithified, black shale

• the regression was temporarily reversed at this western locality.

• Unit 4: The regression is marked by a return to conditions similar to those of the advance. At Winter Hill a retreat faunal profile is well developed in 1.85m of dark grey, silty shale similar in lithology to that of other localities. this is overlain by a paper shale with a fauna dominated by Gastrioceras sp. and Dunbarella elegans. It thus appears that the regression was temporarily reversed at this western locality.

Size class: macrofossils

Primary reference: P. B. Wignall. 1987. A biofacies analysis of the Gastroceras cumbriense marine band (Namurian) of the central Pennines. Proceedings of the Yorkshire Geological Society 46(2):111-121 [J. Alroy/C. Simpson/C. Simpson]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 41208: authorized by John Alroy, entered by Carl Simpson on 08.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

unclassified
-	Nautilodea indet. Nautilodea indet. Narrow angle orthocone
Polypodiopsida
Equisetales - Equisetidae	cf. Calamites sp. cf. Calamites sp. Suckow 1784
Gnathostomata
-	Chondrichthyes indet., Osteichthyes indet. Chondrichthyes indet. Huxley 1880 cartilaginous fish Teeth Osteichthyes indet. bony fish Palaeoniscid scales
Cephalopoda
Goniatitida - Bisatoceratidae	Homoceratoides aff. divaricatus Homoceratoides aff. divaricatus ammonite
Goniatitida - Dimorphoceratidae	Anthracoceratites sp. Anthracoceratites sp. Ramsbottom 1970 ammonite
Goniatitida - Gastrioceratidae	Gastrioceras cumbriense, Gastrioceras crenulatum, Gastrioceras cf. crenulatum, Gastrioceras aff. coronatum, Gastrioceras aff. subcrenatum, Gastrioceras spp. Gastrioceras cumbriense ammonite Gastrioceras crenulatum ammonite Gastrioceras cf. crenulatum ammonite Gastrioceras aff. coronatum ammonite Gastrioceras aff. subcrenatum ammonite Gastrioceras spp. Hyatt 1884 ammonite Juvenile
Gastropoda
-	Gastropoda indet. Gastropoda indet. Cuvier 1795 snail Small
Murchisoniina - Gosseletinidae	Angyomphalus sp. Angyomphalus sp. Cossmann 1915 snail
Bivalvia
-	Bivalvia indet. Bivalvia indet. Linnaeus 1758 clam Small
Cardiidia - Sanguinolitidae	Sanguinolites sp. Sanguinolites sp. M'Coy 1844 clam
Pectinida - Pterinopectinidae	Dunbarella elegans Dunbarella elegans scallop
Pectinida - Aviculopectinidae	Aviculopecten aff. losseni, Aviculopecten sp. Aviculopecten aff. losseni scallop Aviculopecten sp. M'Coy 1851 scallop
Ostreida - Posidoniidae	Posidonia insignis, Posidonia gibsoni, Posidonia sp. Posidonia insignis oyster Posidonia gibsoni oyster Posidonia sp. Bronn 1828 oyster
Ostreida - Pterineidae	Caneyella multirugata Caneyella multirugata oyster
Lingulata
Lingulida - Lingulidae	Lingula mytilloides Lingula mytilloides