Threemile Cove, Gravina Island - 8831 (Triassic of the United States)
Also known as G.C.M.-3
Where: Alaska (55.2° N, 131.7° W: paleocoordinates 1.1° S, 68.1° W)
• coordinate based on nearby landmark
When: Triassic (251.9 - 201.4 Ma)
Environment/lithology: lithified limestone and lithified conglomerate
• Large limestone nodule in conglomerate.
Size class: macrofossils
Collected by Martin and Overbeck
Primary reference: A. F. Buddington and T. Chapin. 1929. Geology and mineral deposits of southeastern Alaska. United States Geological Survey Bulletin 800:1-398 [A. Miller/S. Kolbe]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 112231: authorized by Arnold Miller, entered by Sarah Kolbe on 07.07.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
• Identified by T.W. Stanton.
Show authors, comments, and common names
| Cephalopoda | |
|
? Cosmonautilus sp. Hyatt and Smith 1905 nautiloid | |
| Rhynchonellata | |
|
? Rhynchonella sp. Fischer 1809 | |