Sulphur Well Mbr., Lexington Limestone, Kentucky (Ordovician of the United States)

Where: Kentucky (38.0° N, 84.7° W: paleocoordinates 27.3° S, 63.2° W)

• coordinate estimated from map

• basin-level geographic resolution

When: Sulphur Well Member (Lexington Limestone Formation), Chatfieldian (460.9 - 449.5 Ma)

• member-level stratigraphic resolution

Environment/lithology: deep subtidal ramp; lithified, shelly/skeletal, gray packstone and lithified, shelly/skeletal shale

• environmental call based on field notes of Holland and Patzkowsky

Size class: macrofossils

Preservation: original calcite

Reposited in the USNM

Primary reference: E. R. Cressman. 1973. Lithostratigraphy and depositional environments of the Lexington Limestone (Ordovician) of central Kentucky. USGS Professional Paper 768:1-61 [M. Patzkowsky/M. Patzkowsky/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 34557: authorized by Steven Holland, entered by Steven Holland on 09.09.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Stenolaemata
 Trepostomida -
 Cryptostomata - Ptilodictyonidae
Escharopora sp. Hall 1847
 Cryptostomata - Rhinidictyidae
Pachydictya sp. Ulrich 1882
 Cryptostomata - Escharoporidae
Graptodictya sp. Ulrich 1882
 Trepostomata - Heterotrypidae
? Heterotrypa sp. Nicholson 1879
? Dekayia sp. Milne-Edwards and Haime 1851
 Trepostomata - Halloporidae
Hallopora sp. Bassler 1911
 Trepostomata - Monticuliporidae
Homotrypa sp. Ulrich 1882
 Trepostomata - Trematoporidae
Strophomenata
 Strophomenida - Rafinesquinidae
Rafinesquina sp. Hall and Clarke 1892
Rhynchonellata
 Atrypida - Anazygidae
Zygospira sp. Hall 1862
 Orthida - Plectorthidae