Where: Shasta County, California (40.8° N, 122.1° W: paleocoordinates 13.5° N, 53.5° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Hosselkus Formation, Tuvalian (232.0 - 221.5 Ma)
• Zone of Tropites subbullatus, Trachyceras subzone
• group of beds-level stratigraphic resolution
Environment/lithology: lithified limestone
Size class: macrofossils
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 144383: authorized by Matthew Clapham, entered by Matthew Clapham on 06.05.2013, edited by Catherine Powers
Creative Commons license: CC BY (attribution)
Taxonomic list
| Rhynchonellata | |
"Rhynchonella" richardsoni n. sp., "Rhynchonella howardi n. sp." = Piarorhynchia howardi, "Rhynchonella winnemae n. sp." = Piarorhynchia winnemae
"Rhynchonella" richardsoni n. sp. Smith 1927
"Rhynchonella howardi n. sp." = Piarorhynchia howardi Smith 1927
"Rhynchonella winnemae n. sp." = Piarorhynchia winnemae Smith 1927 | |
"? Terebratula piriformis" = Rhaetina pyriformis
"? Terebratula piriformis" = Rhaetina pyriformis Suess 1854 | |
""Dielasma" julicum" = Tibetothyris julica
""Dielasma" julicum" = Tibetothyris julica Bittner 1890 | |
"Spirigera" milesi n. sp.
"Spirigera" milesi n. sp. Smith 1927 | |
| Bivalvia | |
? Cardiomorpha digglesi n. sp.
? Cardiomorpha digglesi n. sp. Smith 1927 clam | |
|
Halobia superba Mojsisovics 1874 oyster | |