Where: Shasta County, California (40.9° N, 122.1° W: paleocoordinates 11.4° N, 50.3° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Pit Formation, Carnian (237.0 - 228.0 Ma)
• Pit shale, about 200 feet below the Hosselkus Limestone
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified shale
Size class: macrofossils
Preservation: mold/impression
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 144374: authorized by Matthew Clapham, entered by Matthew Clapham on 06.05.2013, edited by Catherine Powers and Bethany Allen
Creative Commons license: CC BY (attribution)
Taxonomic list
Echinoidea | |
Cidaris sp. Leske 1778 pencil urchin | |
Crinoidea | |
Pentacrinus sp. Miller 1821 Sea lily | |
Cephalopoda | |
Trachyceras (Protrachyceras) storrsi n. sp. Smith 1927 ceratite | |
Bivalvia | |
Pecten (Entolium) pittensis n. sp.
Pecten (Entolium) pittensis n. sp. Smith 1927 scallop | |
Lima kimballi n. sp.
Lima kimballi n. sp. Smith 1927 file clam | |
Halobia rugosa Guembel 1861 oyster |