Where: North Dakota (48.4° N, 98.7° W: paleocoordinates 12.1° S, 59.5° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Gunn Member (Stony Mountain Formation), Richmondian (449.6 - 445.5 Ma)
• member-level stratigraphic resolution
Environment/lithology: deep subtidal; lithified, shelly/skeletal packstone and lithified, gray, calcareous shale
Size class: macrofossils
Preservation: original calcite
Reposited in the USNM
Primary reference: F.K. Lobdell. 1992. Arthrostylidae (Bryozoa: Cryptostomata) fromthe Gunn Member, Stony Mountain Formation (Upper Ordovician), North Dakota and Manitoba. North Dakota Geological Survey Miscellaneous Series 76:99-115 [S. Holland/S. Holland]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 64599: authorized by Steven Holland, entered by Steven Holland on 10.09.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
Stenolaemata | |
Arthroclema brevis, Arthroclema pentagonalis, Ulrichostylus costatus, Ulrichostylus dakotensis, Arthrotrypa ovata, Sceptropora facula, Sceptropora florida, Nematoporella ulrichi, Nematoporella falcata
Arthroclema brevis Lobdell 1992
Arthroclema pentagonalis Lobdell 1992
Ulrichostylus costatus Lobdell 1992
Ulrichostylus dakotensis Lobdell 1992
Arthrotrypa ovata Lobdell 1992
Sceptropora facula Ulrich 1888
Sceptropora florida Kiepura 1962
Nematoporella ulrichi Lobdell 1992
Nematoporella falcata Lobdell 1992 |