Calls Fort Shale Mbr., Bloomington Fm. (Cambrian of the United States)

Where: Idaho/ Utah (42.2° N, 112.3° W: paleocoordinates 5.4° S, 89.0° W)

• coordinate based on political unit

• basin-level geographic resolution

When: ? Bolaspidella trilobite zone, Calls Fort Shale Member (Bloomington Formation), St Davids (509.0 - 497.0 Ma)

• "?Bolaspidella zone"

• member-level stratigraphic resolution

Environment/lithology: marine; limestone and shale

• "ls., in part intraclastic, and sh. inner detrital (BA2?). pre-orogenic geosyncline."

Size class: macrofossils

Primary reference: G. B. Maxey. 1958. Lower and Middle Cambrian stratigraphy in northern Utah and southeastern Idaho. Geological Society America Bulletin 69:647-687 [M. Uhen/J. Ju/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 218: authorized by Jack Sepkoski, entered by Mike Sommers on 21.03.1999, edited by Phil Novack-Gottshall

Creative Commons license: CC BY (attribution)

Taxonomic list

• G.B.Maxey 1958. Lower and Middle Camb. strat. in northern Utah and southeastern Idaho. GSA Bull. 69:647-687."
unclassified
  -
Pachyrhachis oweni
originally entered as "Pachyrachis sp."
Hyolitha
 Hyolithida - Hyolithidae
Hyolithes sp. d'Eichwald 1840
Helcionelloida
 Helcionellida - Stenothecidae
Stenotheca sp. Hicks 1872
Artiopoda
 Agnostida - Agnostidae
Homagnostus cf. pisiformis
Homagnostus cf. pisiformis pater
Trilobita
 Ptychopariida - Alokistocaridae
Elrathia dubia trilobite
originally entered as "Elrathia sp."
Parehmania sp. Deiss 1939 trilobite
 Ptychopariida - Menomoniidae
"? Howellaspis sp." = Bolaspidella
"? Howellaspis sp." = Bolaspidella Resser 1937 trilobite
originally entered as "? Howellaspis sp."
 Ptychopariida - Bolaspididae
? Acrocephalops cf. gracilis trilobite
originally entered as "Acrocephalops sp."
? Bolaspis sp. Resser 1935 trilobite
originally entered as "? Bolaspis sp."
 Ptychopariida - Marjumiidae
"Ptychoparia oweni" = Modocia nevadensis
"Ptychoparia oweni" = Modocia nevadensis Palmer 1954 trilobite
originally entered as "Pachyrachis sp."
 Asaphida - Asaphidae
Asaphiscus sp. Meek 1873 trilobite