McGee road cut, Table D.17 (Cambrian of the United States)

Where: Georgia (34.2° N, 85.4° W: paleocoordinates 26.8° S, 95.4° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Conasauga Formation, Marjumian (504.5 - 497.0 Ma)

• marjuman

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; lithified mudstone and lithified, concretionary lime mudstone

• this sample is a bit weird...many of the fossils are preserved on odd siliceous concretions that are weathered from the mudstone

Size classes: macrofossils, mesofossils

Collection methods: quarrying,

Primary reference: S. E. Peters. 2003. Evenness, richness and the Cambrian-Paleozoic faunal transition in North America: an assemblage-level perspective. The University of Chicago 1-279 [S. Peters/S. Peters/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 64486: authorized by Shanan Peters, entered by Shanan Peters on 09.09.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Demospongia
  -
"? Demospongia indet." = Demospongiae
"? Demospongia indet." = Demospongiae Sollas 1875 demosponge
Helcionelloida
 Helcionellida - Pelagiellidae
Pelagiella sp. Matthew 1895
Hyolitha
 Hyolithida -
Hyolithida indet. Mathew 1962
Lingulata
 Acrotretida - Acrotretidae
Acrotretidae indet. Schuchert 1893
Artiopoda
 Agnostida - Diplagnostidae
Baltagnostus sp. Lochmann 1944
 Agnostida - Peronopsidae
Peronopsis sp. Corda 1847
Trilobita
 Ptychopariida -
Ptychopariida indet. Swinnerton 1915 trilobite
 Ptychopariida - Norwoodiidae
? Holcacephalus sp. Resser 1938 trilobite
 Ptychopariida - Alokistocaridae
Elrathia sp. Walcott 1924 trilobite
Alokistocare sp. Lorenz 1906 trilobite
 Asaphida - Asaphidae
"? Blainia sp." = Asaphiscus (Blainia)
"? Blainia sp." = Asaphiscus (Blainia) Walcott 1916 trilobite
 Olenida - Cedariidae
? Bonneterrina sp. Lochmann 1936 trilobite