USGS no. D900 CO (Ordovician of the United States)
Also known as 61-ASn-483
Where: Alaska (65.5° N, 167.4° W: paleocoordinates 12.4° N, 39.5° W)
• coordinate estimated from map
When: Llanvirnian (468.1 - 460.9 Ma)
Environment/lithology: lithified, gray limestone and limestone
• Medium-bedded medium- to dark gray limestone and some light brownish-gray limestone.
Size class: macrofossils
Collected by Sainsbury in 1961
Primary reference: C. L. Sainsbury. 1969. Geology and Ore Deposits of the Central York Mountains, Western Seward Peninsula, Alaska. United States Geological Survey Bulletin 1287:1-101 [A. Miller/S. Kolbe] more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 101854: authorized by Arnold Miller, entered by Sarah Kolbe on 04.01.2011