Where: Shasta County, California (40.9° N, 122.1° W: paleocoordinates 12.6° N, 51.9° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Hosselkus Formation, Tuvalian (232.0 - 221.5 Ma)
• Upper part of the Hosselkus limestone, about 150 feet above beds with Tropites subbullatus.
Environment/lithology: lithified limestone
Size class: macrofossils
Collected by J.P. Smith; reposited in the USNM
Primary reference: A. Hyatt and J. P. Smith. 1905. The Triassic cephalopod genera of America. United States Geological Survey Professional Paper 40:1-394 [D. Bottjer/C. Powers/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 33327: authorized by David Bottjer, entered by Catherine Powers on 25.07.2003, edited by Matthew Clapham
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
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Celtites steindachneri Mojsisovics 1893 ceratite | |
"Choristoceras kellyi n. sp." = Sympolycyclus kellyi, "Polycyclus major n. sp." = Sympolycyclus kellyi
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Arcestes (Proarcests) carpenteri n. sp., Arcestes (Proarcestes) shastensis n. sp., Arcestes (Proarcestes) whitneyi
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Juvavites knowltoni, Juvavites (Anatomites) subinterruptus, "Juvavites kellyi n. sp." = Goniojuvavites kellyi
Juvavites (Anatomites) subinterruptus Mojsisovics 1893 ceratite | |
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Tropites reticulatus, Tropites shastensis n. sp., Tropites kellyi n. sp., Tropites arthaberi, Tropites dieneri n. sp., Anatropites hauchecornei, Discotropites sengeli, Discotropites laurae, Discotropites lineatus, "Halorites (Homerites) semiglobosus" = Homerites semiglobosus, Margarites senilis, Margarites septentrionalis n. sp., "Margarites jokelyi" = Hoplotropites jokelyi, "Tropites kokeni n. sp." = Margaritropites kokeni, "Tropites johnsoni" = Margaritropites johnsoni, "Tropites philippii n. sp." = Margaritropites johnsoni
Discotropites lineatus Smith 1927 ceratite | |
Juvavites (Anatomites) subintermittens, Juvavites (Anatomites) adalberti, Juvavites (Anatomites) externiplicatus, Sagenites (Trachysagenites) herbichi
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Gastropoda | |
Omphaloptycha shastensis n. sp., Omphaloptycha obesa n. sp.
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Worthenia klamathensis n. sp.
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"Patella" sheehani n. sp.
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Bivalvia | |
Avicula soperi n. sp.
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Dimyodon storrsi n. sp.
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? Anoplophora shastensis n. sp.
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"Cardita" jenkinsi n. sp.
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Cardinia gleimi n. sp.
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