USGS 8830, Threemile Cove, Gravina Island: Lacian, Alaska
collected by Martin and Overbeck

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Pseudomelaniidae
? Pseudomelania sp. Pictet and Campiche 1862
Buddington and Chapin 1929
Bivalvia - Ostreida - Ostreidae
? Ostrea sp. Linnaeus 1758
Buddington and Chapin 1929
Cephalopoda - Ceratitida - Arcestidae
? Arcestes sp. Suess 1865
Buddington and Chapin 1929
Anthozoa - Scleractinia - Pamiroseriidae
"Astrocoenia" martini (Smith 1927)
original and current combination Guembelastraea martini
see common names

Geography
Country:United States State/province:Alaska
Coordinates: 55.2° North, 131.8° West (view map)
Paleocoordinates:0.1° South, 70.9° West
Basis of coordinate:based on nearby landmark
Time
Period:Triassic Epoch:Late/Upper Triassic
Stage:Norian 10 m.y. bin:Triassic 4
Key time interval:Lacian
Age range of interval:227.00000 - 216.70000 m.y. ago
Stratigraphy
Lithology and environment
Primary lithology: lithified "limestone"
Environment:carbonate indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Collectors:Martin and Overbeck
Taxonomic list comments:Identified by T.W. Stanton.
Metadata
Also known as:G.C.M.-2
Database number:112234
Authorizer:A. Miller, D. Bottjer Enterer:S. Kolbe, C. Powers
Modifier:M. Clapham Research group:marine invertebrate
Created:2011-07-07 01:32:44 Last modified:2013-05-05 22:35:57
Access level:the public Released:2011-07-07 01:32:44
Creative Commons license:CC BY
Reference information

Primary reference:
8858. 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]

Secondary references:

36639 H. C. Berg and E. L. Cruz. 1982. Map and table describing fossil collections and related samples in the Ketchikan and Prince Rupert Quadrangles, southeastern Alaska. United States Geological Survey Open-File Report 82-1088 [A. Miller/S. Kolbe]
36540 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]