USGS 9384, south bank of Yukon River (Triassic of the United States)
Where: Alaska (65.2° N, 141.7° W: paleocoordinates 39.8° N, 43.6° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Julian (235.0 - 232.0 Ma)
Environment/lithology: lithified limestone
Size class: macrofossils
Collected by Eliot Blackwelder; reposited in the USNM
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 144378: authorized by Matthew Clapham, entered by Matthew Clapham on 06.05.2013, edited by Catherine Powers
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| Bivalvia | |
"Pleurophorus" overbecki n. sp.
"Pleurophorus" overbecki n. sp. Smith 1927 clam | |
Lima martini n. sp.
Lima martini n. sp. Smith 1927 file clam | |
Pecten (Entolium) yukonensis n. sp.
Pecten (Entolium) yukonensis n. sp. Smith 1927 scallop | |
| Cephalopoda | |
Germanonautilus brooksi n. sp.
Germanonautilus brooksi n. sp. Smith 1927 nautiloid | |
| Rhynchonellata | |
"Dielasma" chapini n. sp.
"Dielasma" chapini n. sp. Smith 1927 | |