River Burn, Gollinglith Foot (i), Colsterdale (Carboniferous of the United Kingdom)

Where: England, United Kingdom (54.1° N, 1.8° W: paleocoordinates 1.0° S, 6.2° E)

• small collection-level geographic resolution

When: E2 zone, lowest (i) division Member (Colsterdale Marine Beds Formation), Arnsbergian (327.0 - 323.7 Ma)

• Bisat (1914) referred to the marine strata as the Colsterdale Marine Beds, a term retained in this account.

• member-level stratigraphic resolution

Environment/lithology: marine; lithified, ferruginous, gray, argillaceous shale and ironstone

• Paleoenvironment could possibly be paralic or deltaic. There are a lot of preserved wood fragments and other plant remains. It was definitely near-shore, also definitely marine (according to the authors).
• predominantly gray and black shales intercalated with a thin limestone which locally degenerates into a band of calcareous nodules. (i) shales with nuculid-gastropod fauna: dark grey and purplish soapy shales with clay-ironstone nodules.

Primary reference: A. A. Wilson and A. T. Thompson. 1959. Marine bands of Arnsbergian age (Namurian) in the south-eastern portion of the Askrigg Block, Yorkshire. Proceedings of the Yorkshire Geological Society 32(3):45-68 [J. Alroy/M. Sommers/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 8442: authorized by John Alroy, entered by Mike Sommers on 12.07.2000, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Deuteropoda
  -
Ostracoda indet. Latreille 1802 ostracod
Gastropoda
 Murchisoniina - Gosseletinidae
Turbonellina cf. lepida de Koninck 1843 snail
 Bellerophontida -
Bellerophontoidea indet. M'Coy 1851 snail
 Bellerophontida - Bellerophontidae
 Bellerophontida - Euphemitidae
Euphemites sp. Warthin 1930 snail
 Neritoidea - Naticopsidae
Naticopsis sp. M'Coy 1844 snail
Bivalvia
 Nuculida - Nuculidae
 Nuculanida - Nuculanidae
"Nuculana undulata" = Nuculana, "Leda attenuata" = Nuculana
"Nuculana undulata" = Nuculana pointed nut clam
"Leda attenuata" = Nuculana pointed nut clam
 Mytilida - Mytilidae
? Lithophaga sp. Röding 1798 mussel
 Ostreida - Posidoniidae
Cephalopoda
 Nautiloidea -
Nautiloidea indet. Agassiz 1847 nautiloid
orthocone nautiloid
 Goniatitida - Anthracoceratidae
Anthracoceras sp. Frech 1899 ammonite
 Goniatitida - Cravenoceratidae
? Cravenoceras sp. Bisat 1928 ammonite
 Nautilida - Liroceratidae
Stenolaemata
 Cryptostomata -
Cryptostomata indet. Vine 1884
?rod cryptostome
 Cryptostomata - Fenestellidae
Fenestella sp. Lonsdale 1839
Rhynchonellata
 Terebratulida - Dielasmatidae
Dielasma sp. Beede and Rogers 1900
 Spiriferida - Ambocoeliidae
Crurithyris urei Fleming 1828
Lingulata
 Lingulida - Lingulidae
Hexactinellida
 Lyssacinosa - Stiodermatidae
Hyalostelia smithii glass sponge