Hot Creek Range, Hales Limestone, upper Franconian (Cambrian of the United States)

Where: Nevada (38.6° N, 116.4° W: paleocoordinates 2.8° S, 88.9° W)

• coordinate based on nearby landmark

• basin-level geographic resolution

When: Hales Limestone Formation, Franconian (497.0 - 485.4 Ma)

• "Upper Franconian"

Environment/lithology: slope; wackestone

• "outer detrital belt, dark fine grained ls (mudstone and wackestone) slope indigenous fauna (BA6), slope"

Size class: macrofossils

Primary reference: H. E. Cook and M. E. Taylor. 1975. Early Paleozoic continental margin sedimentation, trilobite biofacies, and the thermocline, western United States. Geology 3:559-562 [M. Uhen/J. Ju]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 252: authorized by Jack Sepkoski, entered by Mike Sommers on 20.11.1998

Creative Commons license: CC BY (attribution)

Taxonomic list

• "H.E. Cook and M.E.Taylor 1975. Geology 3:559-562. Taylor, pers.comm. 2/24/81" [trilobites, 1 indet. brach and 1 indet. sponge]
Show authors, comments, and common names
unclassified
  -
Porifera indet.
Porifera indet. Grant 1836
"hexactinellids?"
Lingulata
 Acrotretida -
Acrotretida indet.
Trilobita
 Olenida - Olenidae
Westergaardites sp.
Westergaardites sp. Troedsson 1937 trilobite
 Asaphida - Ceratopygidae
Hedinaspis sp., "Charchaquia sp." = Charchaqia
Hedinaspis sp. Troedsson 1951 trilobite
"Charchaquia sp." = Charchaqia Troedsson 1937 trilobite
Artiopoda
 Agnostida - Agnostidae
Lotagnostus sp.
Lotagnostus sp. Whitehouse 1936
"and several other genera of agnostids"