Carpoid Quarry (Cambrian of the United States)

Where: Millard County, Utah (39.3° N, 113.3° W: paleocoordinates 4.3° S, 91.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Ptychagnostus atavus trilobite zone, Wheeler Formation, Marjumian (504.5 - 497.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Wheeler Fm. Stratigraphic relations are not discussed in text. AGE: Middle Cambrian. Justification not stated in text. STRATIGRAPHIC POSITION: From unknown position within the formation. Bolaspidella zone, too.

• group of beds-level stratigraphic resolution

Environment/lithology: deep subtidal ramp; lithified mudstone

• ENVIRONMENT: Deposited in localized embayment below storm wave base, in basinal a environment, on the distal end of a carbonate ramp.
• SPECIFIC LITHOLOGY: Finely laminated mudstone. LITHIFICATION: Lithified, on the basis of figured specimens.

Size class: macrofossils

Preservation: cast, mold/impression, soft parts

Collected by Gunther; reposited in the ROM, USNM, YPM

Collection methods: surface (in situ),

• COLLECTORS: Unknown, but possibly including B.S. Liverman, D.E. Briggs, S.L. Halgedahl, and R.J Jarrard. REPOSITORIES: KUMIP (Kansas), ROM (Ontario), USNM (Washington), UU (Utah), YPM (Yale).

Primary reference: D. E. G. Briggs, B. S. Lieberman, J. R. Hendricks, S. L. Halgedahl, and R. D. Jarrard. 2008. Middle Cambrian arthropods from Utah. Journal of Paleontology 82(2):238-254 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 80125: authorized by Austin Hendy, entered by Austin Hendy on 06.04.2008, edited by Pete Wagner and Joanna Wolfe

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Only includes those taxa systematically discussed in publication. NOMENCLATURE: Authoritative publication with modern nomenclature and use of species-resolution assignments.
 Bilateria - Opabiniidae
Utaurora comosa n. sp.2 Pates et al. 2022
 Radiodonta - Anomalocarididae
 Habeliida -
Messorocaris magna1 Lerosey-Aubril and Skabelund 2018
 Leanchoiliida - Leanchoiliidae
Dicranocaris guntherorum
Dicranocaris guntherorum Briggs et al. 2008
 Cornuta - Cothurnocystidae
"? Cothurnocystis bifida n. sp." = Archaeocothurnus bifida3
"? Cothurnocystis bifida n. sp." = Archaeocothurnus bifida3 Ubaghs and Robison 1988