Alexander Terrane, Nehenta Bay, Gravina Island (Triassic of the United States)

Where: Alaska (55.3° N, 131.8° W: paleocoordinates 0.1° N, 70.9° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Nehenta Formation, Lacian (221.5 - 215.6 Ma)

• Alexander Terrane, Early Norian

Environment/lithology: shallow subtidal; lithified limestone

Size class: macrofossils

Preservation: replaced with silica

Collection methods: chemical, acetic,

Primary reference: A. H. Caruthers and G. D. Stanley , Jr. 2008. Systematic analysis of upper triassic silicified scleractinian corals from Wrangellia and the Alexander Terrane, Alaska and British Columbia. Journal of Paleontology 82(3):470-491 [W. Kiessling/A. Girndt]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 82659: authorized by Wolfgang Kiessling, entered by Antje Girndt on 31.07.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Anthozoa
 Scleractinia - Pamiroseriidae
Pamiroseris borealis Smith 1927 stony coral
Crassistella juvavica Frech 1890 stony coral
 Scleractinia - Reimaniphylliidae
Paracuifia smithi Caruthers and Stanley 2008 stony coral
USNM 174241
Cuifia cf. marmorea Frech 1890 stony coral
 Scleractinia - Gablonzeriidae
Gablonzeria grandiosa Caruthers and Stanley 2008 stony coral
UMIP 400488