Threemile Cove, Gravina Island (Stanford coll) (Triassic of the United States)

Also known as Reef 50

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: Nehenta Formation, Lacian (221.5 - 215.6 Ma)

Environment/lithology: perireef or subreef; lithified limestone

• Perireef (or biostrome) environment indicated by Caruthers and Stanley (2008)

Size class: macrofossils

Preservation: replaced with calcite, replaced with silica

Collected by T.E. Bassett, C.O. Blackburn

• Repository: Stanford University

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: taxonomic analysis

PaleoDB collection 33424: authorized by David Bottjer, entered by Catherine Powers on 29.07.2003, edited by Matthew Clapham and Wolfgang Kiessling

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Anthozoa
 Scleractinia - Pamiroseriidae
"Isastrea parva" = Ceriostella parva, Areaseris nevadensis2
"Isastrea parva" = Ceriostella parva Smith 1927 stony coral
Areaseris nevadensis2 stony coral
var. minor
 Scleractinia - Reimaniphylliidae
Retiophyllia clathrata1, "Confusastrea borealis n. sp." = Kuhnastraea incrassata
Retiophyllia clathrata1 Emmrich 1853 stony coral
Collection not specified
"Confusastrea borealis n. sp." = Kuhnastraea incrassata Frech 1890 stony coral
 Scleractinia - Curtoseriidae
Curtoseris dunlapcanyonae3
Curtoseris dunlapcanyonae3 Roniewicz and Stanley 2013 stony coral
Isastrea parva specimen in pl 114, fig 9 only
1Caruthers and Stanley 2008; 2Kiessling 2014; 3Roniewicz and Stanley 2013