USGS Loc. 33107-33131 [Limestone & Dolomite Mbr, Shublik Fm] (Triassic of the United States)

Where: Alaska (69.5° N, 145.2° W: paleocoordinates 42.2° N, 25.8° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Shublik Formation, Ladinian (242.0 - 237.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Limestone of the Shublik Fm, for which lithostratigraphic relationships are not discussed. AGE: Ladinian, on the basis of ostracod biostratigraphy. STRATIGRAPHIC POSITION: From between 30.5 and 68.6 m in section.

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; lithified, argillaceous shale

• SPECIFIC LITHOLOGY: Clay shale. LITHIFICATION: Lithified, on the basis of sample preparation.

Size class: macrofossils

Collected by Detterman; reposited in the USNM

• COLLECTOR: R.L. Detterman, c. 1970's. REPOSITORY: USNM.

Primary reference: I. G. Sohn. 1987. Middle and Upper Triassic Marine Ostracoda from the Shublik Formation, Northeastern Alaska. United States Geological Survey Bulletin 1664:C1-C21 [A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 162419: authorized by Austin Hendy, entered by Austin Hendy on 24.09.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for ostracoda. NOMENCLATURE: Authoritative publication, with modern nomenclature, and species-resolution identifications.
Show authors, comments, and common names
Ostracoda
 Podocopida - Healdiidae
Healdia "sp. 1", Healdia "sp. 3", Ogmoconcha aff. limbata, Ogmoconcha owthropensis, Ogmoconcha tailleuri n. sp., Ogmoconcha unicerata n. sp.
Healdia "sp. 1" Roundy 1926 ostracod
Healdia "sp. 3" Roundy 1926 ostracod
Ogmoconcha aff. limbata Reuss 1868 ostracod
Ogmoconcha owthropensis Anderson 1964 ostracod
Ogmoconcha tailleuri n. sp. Sohn 1987 ostracod
Ogmoconcha unicerata n. sp. Sohn 1987 ostracod
 Podocopida - Bythocytheridae
Covracythere gryci n. sp., Covracythere binoda n. sp.
Covracythere gryci n. sp. Sohn 1987 ostracod
Covracythere binoda n. sp. Sohn 1987 ostracod
 Podocopida - Cytheruridae
Dettermania truncata n. sp.
Dettermania truncata n. sp. Sohn 1987 ostracod
 Podocopida - Brachycytheridae
Rhombocythere sp.
Rhombocythere sp. Andreson 1964 ostracod
 Platycopida - Cavellinidae
Cavussurella sp., Cavussurella grammi n. sp., Recytella "sp. 1", Recytella "sp. 2"
Cavussurella sp. Gramm 1969 ostracod
Cavussurella grammi n. sp. Sohn 1987 ostracod
Recytella "sp. 1" Gramm 1970 ostracod
Recytella "sp. 2" Gramm 1970 ostracod