Hermitage (Curdsville) - Wilson, 1949 (Ordovician of the United States)

Where: Tennessee (35.5° N, 86.5° W: paleocoordinates 28.1° S, 66.4° W)

• basin-level geographic resolution

When: Phragmodus undatus conodont zone, Curdsville Member (Hermitage Formation), Turinian (457.3 - 453.8 Ma)

• Was given as Shermanian, but the Hermitage & Curdsville are older than that.

• member-level stratigraphic resolution

Environment/lithology: lithified, phosphatic, shelly/skeletal, gray packstone and mudstone

• Geologic information from field notes of S.M. Holland and M.E. Patzkowsky
• thin to medium-bedded skeletal and phosphatic packstones, interbedded with dark gray mudstones

Size class: macrofossils

Preservation: original calcite, replaced with calcite

Primary reference: C. W. Wilson. 1949. Pre-Chattanooga stratigraphy in Central Tennessee. Tennessee Division of Geology Bulletin 56:1-415 [S. Holland/S. Holland]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 5347: authorized by Steven Holland, entered by Steven Holland on 27.09.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• Includes both lists from Wilson, 1949; one from Curdsville and one from Bassler's (1932) list from the Constellaria varia bed, which is probably Curdsville, according to Wilson.
Cephalopoda
 Pseudorthocerida - Spyroceratidae
Bivalvia
 Solemyida - Ctenodontidae
Gastropoda
 Bellerophontida - Bucaniidae
"Conradella dyeri" = Phragmolites dyeri
"Conradella dyeri" = Phragmolites dyeri Hall 1872 snail
Conradella dyeri cellulosa
 Euomphalina - Platyceratidae
"Cyclora minuta" = Cyclonema minuta
"Cyclora minuta" = Cyclonema minuta Hall 1845 snail
Lophophorata
 Tentaculitida - Cornulitidae
Cornulites sp. Schlotheim 1820
Lingulata
 Lingulida - Discinidae
Strophomenata
 Strophomenida - Rafinesquinidae
Rhynchonellata
 Protorthida - Skenidiidae
"Scenidium anthonense" = Skenidioides anthonense
"Scenidium anthonense" = Skenidioides anthonense Sardeson 1894
 Atrypida - Anazygidae
"Zygospira recurvirostris" = Anazyga recurvirostra
"Zygospira recurvirostris" = Anazyga recurvirostra Hall 1847
 Orthida - Plaesiomyidae
 Orthida - Platystrophiidae
 Orthida - Dalmanellidae
Dalmanella fertilis Ulrich 1909
 Orthida - Heterorthidae
 Orthida - Draboviidae
"Pianodema subaequata" = Pionodema subaequata
"Pianodema subaequata" = Pionodema subaequata Conrad 1843
 Rhynchonellida - Rhynchotrematidae
Stenolaemata
 Cryptostomata - Ptilodictyidae
 Cryptostomata - Rhinidictyidae
Pachydictya spp. Ulrich 1882
 Cryptostomata - Arthrostylidae
Nematopora spp. Ulrich 1888
 Cystoporata - Constellariidae
Constellaria varia Ulrich 1893
 Cyclostomata - Corynotrypidae
Corynotrypa inflata Nicholson 1875
  - Phylloporinidae
 Trepostomida - Amplexoporidae
Amplexopora spp., "Calloporina parva" = Halloporina
"Calloporina parva" = Halloporina
 Trepostomida - Atactotoechidae
Cyphotrypa spp. Ulrich and Bassler 1904
 Trepostomida - Monticuliporidae
 Trepostomata - Aisenvergiidae
Eridotrypa spp. Ulrich 1893
 Trepostomata - Heterotrypidae
Ostracoda
 Palaeocopida - Leperditellidae
Trilobita
 Phacopida - Calymenidae
"Calymene senaria" = Flexicalymene (Flexicalymene) senaria Conrad 1841 trilobite
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
Anthozoa
 Stauriida - Columnariidae
Columnaria alveolata Goldfuss 1826 horn coral
Columnaria alveolata minor
 Auloporida - Auloporidae
Aulopora trentonensis tabulate coral
Demospongiae
 Sigmatosclerophorida - Dystactospongiidae
Dystactospongia sp. Miller 1882 demosponge
misspelled in Wilson as Dystatospongia