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
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 | |
Glabrocingulum aff. interstrialis Phillips 1836 snail
Turbonellina cf. lepida de Koninck 1843 snail | |
Bellerophontoidea indet. M'Coy 1851 snail | |
Bellerophon anthracophilus Frech 1906 snail | |
Euphemites sp. Warthin 1930 snail | |
Naticopsis sp. M'Coy 1844 snail | |
Bivalvia | |
Nuculopsis gibbosa nut clam | |
? Lithophaga sp. Röding 1798 mussel | |
Posidonia corrugata oyster
Posidonia wapanuckensis oyster | |
Cephalopoda | |
| |
Anthracoceras sp. Frech 1899 ammonite | |
? Cravenoceras sp. Bisat 1928 ammonite | |
Stenolaemata | |
| |
Fenestella sp. Lonsdale 1839 | |
Rhynchonellata | |
Dielasma sp. Beede and Rogers 1900 | |
Crurithyris urei Fleming 1828 | |
Lingulata | |
Hexactinellida | |
Hyalostelia smithii glass sponge |