Offshore zone +2, Kensington Quadrangle, west of Pigeon Mountain (Ordovician of the United States)

Where: Walker County, Georgia (34.6° N, 85.4° W: paleocoordinates 29.3° S, 66.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Caradoc (458.4 - 449.5 Ma)

• no information given

Environment/lithology: offshore; gray limestone and brown limestone

• gray to blue-gray, finely to coarsely crystalline limestone grading up into gray to dark gray calcilutite and brown argillaceous limestone

Size class: macrofossils

Primary reference: A. T. Allen and J. G. Lester. 1957. Zonation of the Middle and Upper Ordovician strata in northwestern Georgia. Georgia State Division of Conservation, the Geological Survey Bulletin 66:1-104 [S. Holland/T. Hanson/T. Hanson]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 32580: authorized by Steven Holland, entered by Tori Hanson on 09.07.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Florideophyceae
  -
"Tetradium fibratum" = Prismostylus fibratum
"Tetradium fibratum" = Prismostylus fibratum Safford 1856
Safford
Demospongiae
 Hadromerida - Suberitidae
Chaetetes sp. Fischer von Waldheim 1829 demosponge
Rhynchonellata
 Rhynchonellida - Rhynchotrematidae
"Rhynchotrema argenturbiem" = Hypsiptycha argenturbicum, Rhynchotrema sp.
"Rhynchotrema argenturbiem" = Hypsiptycha argenturbicum White 1874
(White)
Rhynchotrema sp. Hall 1860
Stenolaemata
 Trepostomata - Halloporidae
"Callopora multitabulata" = Hallopora
"Callopora multitabulata" = Hallopora
(Ulrich)
 Trepostomata - Trematoporidae
 Cryptostomata - Rhinidictyidae
Gastropoda
 Murchisoniina - Hormotomidae
Hormotoma sp. Salter 1859 snail
 Murchisoniina - Lophospiridae
Lophospira sp. Whitfield 1886 snail
Ostracoda
 Leperditicopida - Leperditiidae
Leperditia sp. Rouault 1851 ostracod
 Leperditicopida - Isochilinidae
Isochilina sp. Jones 1858 ostracod