Where: Alaska (69.5° N, 145.6° W: paleocoordinates 14.4° N, 45.9° W)

• coordinate estimated from map

When: Aphelognathus divergens conodont zone, 7 Member (Nanook Formation), Ashgill (449.5 - 443.7 Ma)

• 11.0 to 11.3 m above base of section. Probably Richmondian given divergens. Originally entered as Member 8, but that is the Devonian ; Member 7 is inferred.

• bed-level stratigraphic resolution

Environment/lithology: lagoonal or restricted shallow subtidal; lithified limestone

Size classes: macrofossils, microfossils

Primary reference: R. B. Blodgett, D. M. Rohr, A. G. Harris and R. Jia-yu. 1987. A major unconformity between Upper Ordovician and Lower Devonian strata in the Nanook Limestone, Shublik Mountains, northeastern Brooks Range. United States Geological Survey Circular 1016:18-23 [A. Miller/S. Kolbe]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 113018: authorized by Arnold Miller, entered by Sarah Kolbe on 19.07.2011

Creative Commons license: CC BY (attribution)