SP-1-88 (Ordovician of the United States)
Where: Carter County, Oklahoma (34.4° N, 97.1° W: paleocoordinates 21.9° S, 78.3° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: McLish Formation (Simpson Group), Whiterockian (471.8 - 457.5 Ma)
Environment/lithology: shallow subtidal; quartzose sandstone and grainstone
• "...alternating quartz sands, calcarenites, and shales, many of which are greenish-brown in color."
Size class: macrofossils
Collected by F.C. Shaw in the 1970s; reposited in the OU
Primary reference: F. C. Shaw. 1974. Simpson Group (Middle Ordovician) trilobites of Oklahoma. Paleontological Society Memoir 6:1-54 [M. Hopkins/M. Hopkins/M. Hopkins] more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 105633: authorized by Melanie Hopkins, entered by Melanie Hopkins on 23.02.2011