West coast of Gravina Island - 9531 (Triassic of the United States)
Also known as 15 ACh 111
Where: Alaska (55.1° N, 131.8° W: paleocoordinates 0.1° S, 70.9° W)
• coordinate based on nearby landmark
When: Late/Upper Triassic (237.0 - 201.4 Ma)
Environment/lithology: lithified limestone and lithified, massive conglomerate
• Limestone overlying massive conglomerate.
Size class: macrofossils
Collected by T. Chapin in 1915
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 112238: 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
| Echinoidea | |
|
Echinoidea indet. Leske 1778 sea urchin | |
| Bivalvia | |
|
? Ostrea sp. Linnaeus 1758 oyster | |
|
? Gryphaea sp. Lamarck 1801 oyster | |
|
Pecten sp. Müller 1776 scallop | |
| Gastropoda | |
|
? Turritella sp. Lamarck 1799 turret shell | |
|
? Natica sp. Scopoli 1777 moon snail | |
| Anthozoa | |
|
Anthozoa indet. Ehrenberg 1834 | |