Red Mountain - formation summary (Silurian to of the United States)

Where: Georgia (34.9° N, 85.4° W: paleocoordinates 28.9° S, 57.2° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Red Mountain Formation, Aeronian to Aeronian (440.8 - 433.4 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; lithified sandstone and lithified shale

• massive conglomeratic sandstones with many crossbreed and ripple marked zones ... lower member of coarse- to medium-grained, buff to red sandstone in both massive and thin layers, a middle member of alternating shales, and silty limestones which for the most part are thinly bedded ... thinly bedded shales, siltstones, and silty limestones

Size class: macrofossils

Preservation: cast

Primary reference: A. T. Allen and J. G. Lester. 1954. Contributions to the Paleontology of Northwest Georgia. Georgia Geological Survey Bulletin 62:1-166 [R. Gastaldo/J. Allen/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 164677: authorized by Steven Holland, entered by Steven Holland on 10.12.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Hormotoma sp.
Trilobita
 Asaphida - Asaphidae
Isotelus (cf. Isotelus) brachycephalus
 Phacopida - Phacopidae
Phacops pulchellus
 Phacopida - Dalmanitidae
Dalmanitina arkansana
 Phacopida - Calymenidae
Calymene sp., Calymene platys, Calymene (cf. Calymene) ragdesi, Calymene celebra
Calymene sp. Brongniart 1822 trilobite
Calymene platys trilobite
Calymene celebra Raymond 1916 trilobite
Stenolaemata
 Trepostomida - Monticuliporidae
Prasopora sp.
Prasopora sp. Nicholson and Etheridge 1877
Rhynchonellata
 Athyridida - Anoplothecidae
Anoplotheca hemispherica
 Pentamerida - Pentameridae
Pentamerus oblongus
Pentamerus oblongus de Sowerby 1839
 Orthida - Rhipidomellidae
Rhipidomella sp.
 Orthida - Dalmanellidae
"Dalmanella meeki" = Cincinnetina meeki, "Dalmanella multisecta" = Cincinnetina multisecta, Dalmanella elegantula, Dalmanella edgewoodensis
"Dalmanella meeki" = Cincinnetina meeki Miller 1875
"Dalmanella multisecta" = Cincinnetina multisecta James 1871
 Orthida - Platystrophiidae
Platystrophia sp.
 Atrypida - Atrypidae
Atrypa reticularis
Atrypa reticularis Linnaeus 1758
 Spiriferida - Cyrtiidae
Eospirifer radiatus
Eospirifer radiatus Sowerby 1834
Gastropoda
 Murchisoniina - Murchisoniidae
"Hormotoma subulata" = Murchisonia subulata
"Hormotoma subulata" = Murchisonia subulata Conrad 1842 snail
Anthozoa
 Stauriida - Campophyllidae
Campophyllum sp.
Campophyllum sp. Milne-Edwards and Haime 1850 horn coral