USGS 10097, Nehenta Bay, Gravina Island (Triassic of the United States)
Where: Alaska (55.2° N, 131.8° W: paleocoordinates 0.1° S, 70.9° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Lacian (221.5 - 215.6 Ma)
Environment/lithology: lithified limestone and lithified shale
Size class: macrofossils
Collected by E.M. Kirk
Primary reference: J. P. Smith. 1927. Upper Triassic marine invertebrate faunas of North America. United States Geological Survey Professional Paper 141:1-262 [D. Bottjer/C. Powers/M. Clapham]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 112337: authorized by Arnold Miller, entered by Sarah Kolbe on 09.07.2011, edited by Catherine Powers
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
Anthozoa | |
"Halomitra" triadica Smith 1927 stony coral | |
"Latimaeandra" alaskana Smith 1927 stony coral | |
Gastropoda | |
Gastropoda indet. Cuvier 1795 snail | |
Bivalvia | |
""Macrodon" sp." = Parallelodon
""Macrodon" sp." = Parallelodon Meek and Worthen 1866 clam |