Westfield Beds, Florentine Synclinorium, Tasmania, Australia (Ordovician of Australia)

Where: Tasmania, Australia (42.0° S, 146.0° E: paleocoordinates 8.1° N, 179.0° W)

• local area-level geographic resolution

When: Westfield Beds Formation, Eastonian (452.7 - 449.5 Ma)

• Unsure whether formation or group of beds; seems to be equivalent to a formation, but of limited stratigraphic extent

• group of beds-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified, argillaceous, sandy siltstone

• Buff-colored, thin-bedded, micaceous siltstone and fine-grained sandstone with some coarse-grained quartz sandst; represents a coarsening and transition to beginning of Benambram Orogeny.

Primary reference: K. D. Corbett and M. R. Banks. 1974. Ordovician stratigraphy of the Florentine Synclinorium, southwest Tasmania. Papers and Proceedings of the Royal Society of Tasmania 107:207-238 [A. Miller/P. Novack-Gottshall/A. Clement]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 2687: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 14.07.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Ninkianglithus sp., Stictoporellida indet.
Anthozoa
 Stauriida - Lykophyllidae
Holophragma sp.
Holophragma sp. Lindström 1896 horn coral
 Stauriida - Streptelasmatidae
Dalmanophyllum sp.
Dalmanophyllum sp. Lang and Smith 1939 horn coral
Trilobita
 Corynexochida - Illaenidae
? Bumastus sp.
? Bumastus sp. Murchison 1839 trilobite
originally entered as "Bumastus? sp."
 Phacopida - Encrinuridae
Encrinurus sp.
Encrinurus sp. Emmrich 1844 trilobite
 Phacopida - Calymenidae
Neseuretus sp.
Neseuretus sp. Hicks 1873 trilobite
Strophomenata
 Strophomenida - Rafinesquinidae
Kjerulfina sp.
Kjerulfina sp. Bancroft 1929
Rhynchonellata
 Rhynchonellida - Rhynchotrematidae
Lepidocyclus sp.
Lepidocyclus sp. Wang 1949
 Orthida - Dalmanellidae
Onniella sp.
Onniella sp. Bancroft 1928
Inarticulata
  -
Inarticulata indet.
Stenolaemata
 Trepostomata -
Trepostomata indet.
Trepostomata indet. Ulrich 1882
Bivalvia
 Ostreida - Pterineidae
Pterinea sp.
Pterinea sp. Goldfuss 1832 oyster
 Modiomorphida - Modiomorphidae
Orthodesma sp.
Orthodesma sp. Hall and Whitfield 1875 clam
 Solemyida - Ctenodontidae
Ctenodonta sp.
Ctenodonta sp. Salter 1852 clam
Crinoidea
  -
Crinoidea indet.
Crinoidea indet. Miller 1821 Sea lily