Where: California (40.8° N, 122.2° W: paleocoordinates 13.4° N, 53.6° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Hosselkus Formation, Tuvalian (232.0 - 221.5 Ma)
• Zone of Tropites subbullatus, Juvavites subzone
• group of beds-level stratigraphic resolution
Environment/lithology: lithified, black 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 142611: authorized by Matthew Clapham, entered by Matthew Clapham on 14.04.2013, edited by Catherine Powers
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Mytilus ursensis n. sp.2
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Myophoria brockensis n. sp.2
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Gastropoda | |
"Patella" stuarti n. sp.2
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Cephalopoda | |
"Tropiceltites frechi" = Metasibirites frechi
"Tropiceltites frechi" = Metasibirites frechi Hyatt and Smith 1905 ceratite | |
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"Sagenites (Trachysagenites) erinaceus" = Trachysagenites erinaceus2, Juvavites (Anatomites) konnincki2, Juvavites (Anatomites) intermittens2, Juvavites (Anatomites) mendenhalli2, Juvavites (Anatomites) obsoletus n. sp.2
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"Discotropites gemmellaroi" = Discotropites smithi2, Discotropites mojsvarensis2, Tropites brockensis n. sp.2, Tropites ursensis n. sp.2, Tropites reticulatus2, Jovites pacificus n. sp.2
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"Choristoceras" klamathense n. sp.2
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"Atractites drakei n. sp." = Calliconites drakei2
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"Grypoceras (Gryponautilus) cooperi n. sp." = Gryponautilus cooperi2
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Cosmonautilus shastensis n. sp.2, Proclydonautilus ursensis n. sp.2, Proclydonautilus squawensis n. sp.1
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