PBDB Collection

Brock Mountain, north end and west side (Juvavites subzone) (Triassic of the United States)

Where: Shasta County, California (40.9° 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; Juvavites subzone according to Smith, 1927

• 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 144078: authorized by Matthew Clapham, entered by Matthew Clapham on 30.04.2013, edited by Catherine Powers

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Crinoidea
Isocrinida - Isocrinidae	Isocrinus californicus Isocrinus californicus Clark and Twitchell 1915 Sea lily
Bivalvia
Ostreida - Posidoniidae	Posidonia madisonensis n. sp. Posidonia madisonensis n. sp. Smith 1927 oyster
Ostreida - Halobiidae	Halobia gigantea, Halobia cordillerana, "Halobia ornatissima" = Halobia (Zittelihalobia) ornatissima, Halobia superba Halobia gigantea Smith 1927 oyster Halobia cordillerana Smith 1927 oyster "Halobia ornatissima" = Halobia (Zittelihalobia) ornatissima Smith 1927 oyster Halobia superba Mojsisovics 1874 oyster
Cephalopoda
Ceratitida - Klamathitidae	Klamathites kellyi Klamathites kellyi Smith 1927 ceratite
Ceratitida - Haloritidae	Juvavites (Anatomites) edgari, Juvavites (Anatomites) intermittens, Juvavites (Anatomites) damesi, Sagenites dickersoni n. sp. Juvavites (Anatomites) edgari Mojsisovics 1893 ceratite Juvavites (Anatomites) intermittens Mojsisovics 1893 ceratite Juvavites (Anatomites) damesi Mojsisovics 1893 ceratite Sagenites dickersoni n. sp. Smith 1927 ceratite
Ceratitida - Tropitidae	"Discotropites empedoclis" = Discotropites plinii, "Discotropites gemmellaroi" = Discotropites smithi, Discotropites theron, Tropites wodani, Tropites schellwieni n. sp., Tropites stearnsi n. sp., Tropites arthaberi, Tropites welleri n. sp., Tropites keili, Tropites morani n. sp., Tropites hessi n. sp., Tropites rotatorius n. sp., Tropites rothpletzi n. sp., "Tropites traski n. sp." = Margaritropites johnsoni, "Tropites boehmi n. sp." = Margaritropites johnsoni, Microtropites tubercularis "Discotropites empedoclis" = Discotropites plinii Mojsisovics 1893 ceratite "Discotropites gemmellaroi" = Discotropites smithi Kutassy 1933 ceratite Discotropites theron Dittmar 1866 ceratite Tropites wodani Mojsisovics 1893 ceratite Tropites schellwieni n. sp. Smith 1927 ceratite Tropites stearnsi n. sp. Smith 1927 ceratite Tropites arthaberi Smith 1927 ceratite Tropites welleri n. sp. Smith 1927 ceratite Tropites keili Mojsisovics 1893 ceratite Tropites morani n. sp. Smith 1927 ceratite Tropites hessi n. sp. Smith 1927 ceratite Tropites rotatorius n. sp. Smith 1927 ceratite Tropites rothpletzi n. sp. Smith 1927 ceratite "Tropites traski n. sp." = Margaritropites johnsoni Smith 1927 ceratite "Tropites boehmi n. sp." = Margaritropites johnsoni Smith 1927 ceratite Microtropites tubercularis Mojsisovics 1893 ceratite
Ceratitida - Juvavitidae	"Juvavites (Anatomites) strongi n. sp." = Projuvavites strongi "Juvavites (Anatomites) strongi n. sp." = Projuvavites strongi Smith 1927 ceratite
Ceratitida - Metasibiritidae	Metasibirites mojsvarensis n. sp., Metasibirites shastensis n. sp., Metasibirites modestus n. sp. Metasibirites mojsvarensis n. sp. Smith 1927 ceratite Metasibirites shastensis n. sp. Smith 1927 ceratite Metasibirites modestus n. sp. Smith 1927 ceratite