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 (326.4 - 318.1 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 8443: authorized by John Alroy, entered by Mike Sommers on 12.07.2000
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
| |
? Cravenoceras sp. Bisat 1928 ammonite | |
Gastropoda | |
Glabrocingulum aff. interstrialis Phillips 1836 snail
Turbonellina sp. de Koninck 1844 snail | |
Euphemites sp. Warthin 1930 snail | |
Bivalvia | |
Scaldia sp. de Ryckholt 1847 clam | |
Nuculopsis gibbosa nut clam | |
"Leda attenuata" = Nuculana
"Leda attenuata" = Nuculana pointed nut clam | |
Deuteropoda | |
? Ostracoda indet. Latreille 1802 ostracod | |
Crinoidea | |
| |
Osteichthyes | |
|