Where: England, United Kingdom (54.2° N, 1.9° W: paleocoordinates 0.9° S, 6.2° E)
• small collection-level geographic resolution
When: E2 zone, upper middle (iii) 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, pyritic, gray, silty, carbonaceous lime mudstone
Preservation: replaced with pyrite
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 8453: authorized by John Alroy, entered by Mike Sommers on 12.07.2000
Creative Commons license: CC BY (attribution)
Taxonomic list
Crinoidea | |
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Osteichthyes | |
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Cephalopoda | |
Cravenoceratoides nitidus Phillips 1836 ammonite | |
Anthracoceras paucilobum Phillips 1836 ammonite |