Franconian - Elvina zone, Snowy Range Fm., Sage Pebble Mbr. (Cambrian of the United States)

Where: Montana (47.2° N, 110.2° W: paleocoordinates 7.0° S, 80.0° W)

• coordinate based on political unit

When: Elvinia trilobite zone, Sage Limestone Member (Snowy Range Formation), Franconian (497.0 - 485.4 Ma)

• "Franconian - Elvina zone". Member originall given as "Sage Pebble", but it should be Sage Limestone

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithology not reported

• "Stromatolite bioherm (Collenia magna) Community. Very shallow subtidal (BA1), cratonic shelf"

Size class: macrofossils

Primary reference: R. E. Grant. 1965. Faunas and stratigraphy of the Snowy Range formation (Upper Cambrian) in southwestern Montana and northwestern Wyoming. Geological Society of America Memoirs 96:1-171 [P. Wagner/P. Wagner/J. Ju]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 242: authorized by Jack Sepkoski, entered by Mike Sommers on 21.03.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• "R.E.Grant 1965. Faunas and strat. of the Snowy Range Fm., (Upper Camb.) in sw MT and nw WY GSA Mem. 96, 171pp."
Show authors, comments, and common names
Eocrinoidea
  -
Eocrinoidea indet.
Eocrinoidea indet. Jaekel 1918
Hyolitha
 Hyolithida - Hyolithidae
Hyolithes sp.
Hyolithes sp. d'Eichwald 1840
Lingulata
 Acrotretida - Acrotretidae
Linnarssonella sp.
Linnarssonella sp. Walcott 1902
 Lingulida - Elkaniidae
Pseudodicellomus sp.
 Lingulida - Obolidae
Lingulella sp.
Lingulella sp. Salter 1866
Trilobita
 Olenida - Pterocephaliidae
Pterocephalia sp., Housia sp.
Pterocephalia sp. Roemer 1849 trilobite
Housia sp. Walcott 1916 trilobite
 Olenida - Dokimokephalidae
Burnetiella sp., Dellea sp., ? Pinctus sp., Kyphocephalus sp., Sulcocephalus sp., "Deadwoodia sp." = Wuhuia
Burnetiella sp. Lochmann 1958 trilobite
Dellea sp. Wilson 1949 trilobite
? Pinctus sp. Wilson 1951 trilobite
originally entered as "? Pinctus sp."
Kyphocephalus sp. Miller 1936 trilobite
Sulcocephalus sp. Wilson 1948 trilobite
"Deadwoodia sp." = Wuhuia Kobayashi 1933 trilobite
 Ptychopariida - Elviniidae
Irvingella sp.
Irvingella sp. Ulrich and Resser 1924 trilobite