Lower Wheeler Shale, loc: 712 (Cambrian of the United States)

Where: Millard County, Utah (40.0° N, 113.0° W: paleocoordinates 4.8° S, 91.7° W)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Lower Wheeler Shale Formation, Delamaran (511.2 - 506.5 Ma)

• Listed as Middle Cambrian; Bolaspidella biozone

• bed-level stratigraphic resolution

Environment/lithology: slope; poorly lithified, gray shale

• Listed as Lower Slope, zone:5.5. Bob Gaines (personal e-mail, 11/6/2002 and 2002 GSA) notes this is fully anoxic, but better oxygenated than other Wheeler settings; "silt" is a diagenetic calcite; different facies actually identical hemipelagic calcareous shales with variation in carbonate content
• Medium-gray, thinly-bedded shale

Size class: macrofossils

Preservation: soft parts

Primary reference: S. Conway Morris and R. A. Robison. 1986. Middle Cambrian priapulids and other soft-bodied fossils from Utah and Spain. University of Kansas Paleontological Contributions 117:1-22 [P. Novack-Gottshall/P. Hearn]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 77219: authorized by Phil Novack-Gottshall, entered by Paul Hearn on 02.01.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• Bolaspidella zone, Bathyuriscus fimbriatus subzone; soft-bodied biofacies of Bob Gaines
Show authors, comments, and common names
Trilobita
 Ptychopariida - Kingstoniidae
Brachyaspidion sulcatum
 Asaphida - Asaphidae
Asaphiscus wheeleri
Asaphiscus wheeleri Meek 1873 trilobite
Originally "Asaphicus wheeleri" Assumed spelling error
 Corynexochida - Dorypygidae
Olenoides nevadensis
Olenoides nevadensis Meek 1870 trilobite
 Archaeopriapulida - Selkirkiidae
Selkirkia willoughby, Selkirkia sp.
Selkirkia willoughby
Entire specimen
Selkirkia sp. Walcott 1911
Entire specimen
Hexactinellida
 Reticulosa - Hintzespongiidae
Ratcliffespongia sheeleri
Bryopsidophyceae
 Caulerpales - Caulerpaceae
Margaretia sp.
Margaretia sp. Walcott 1931