Westfield Sandstone, Probable Ashgillian Part, Florentine Valley, Tasmania (Ordovician of Australia)

Where: Tasmania, Australia (42.6° S, 146.4° E: paleocoordinates 6.5° N, 179.5° E)

• coordinate stated in text

• local area-level geographic resolution

When: Westfield Sandstone Formation, Ashgill (449.5 - 443.7 Ma)

• Not all localities can be placed precisely stratigraphically. L2, L3, and F4 are uncertain. The rest are regarded as being fairly clearly Ordovician.

• member-level stratigraphic resolution

Environment/lithology: marine; sandstone and siltstone

Primary reference: M. R. Banks. 1988. The base of the Silurian System in Tasmania. Bulletin of the British Museum (Natural History) (Geology Series) 43:191-194 [M. Foote/M. Foote/U. Merkel]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 26239: authorized by Michael Foote, entered by Michael Foote on 08.10.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

 Corynexochida - Illaenidae
Bumastus sp. Murchison 1839 trilobite
 Phacopida - Calymenidae
Flexicalymene sp. Shirley 1936 trilobite
 Asaphida - Trinucleidae
cf. Guandacolithus sp. Harrington and Leanza 1957 trilobite
 Strophomenida - Rafinesquinidae
"Bekkeromena sp." = Kiaeromena (Bekkeromena) Roomusoks 1963
Kjerulfina sp. Bancroft 1929
 Rhynchonellida - Rhynchotrematidae
Lepidocyclus sp. Wang 1949
 Orthida - Draboviidae
Hirnantia sp., "Kinnella cf. kielanae" = Kinnella medlicotti
Hirnantia sp. Lamont 1935
"Kinnella cf. kielanae" = Kinnella medlicotti Reed 1915
 Orthida - Dalmanellidae
Onniella sp. Bancroft 1928
Isorthis (Ovalella) sp. Walmsley and Boucot 1975
 Orthida - Heterorthidae
 Orthida - Hesperorthidae
Dolerorthis sp. Schuchert and Cooper 1931
 Ostreida - Pterineidae
Pterinea "sp. A" Goldfuss 1832 oyster
Pterinea sp. Goldfuss 1832 oyster
 Modiomorphida - Modiomorphidae
Orthodesma sp. Hall and Whitfield 1875 clam
Graptolithina indet. graptolite
 Graptoloida -
 Stauriida - Streptelasmatidae
? Dalmanophyllum sp. Lang and Smith 1939 horn coral
 Stauriida - Lykophyllidae
? Holophragma sp. Lindström 1896 horn coral