middle faunal horizon, Denison Range (Cambrian of Australia)

Also known as "middle fauna", Singing Creek Formation, Denison Range, Tasmania - Jago 1987

Where: Tasmania, Australia (43.0° S, 147.0° E: paleocoordinates 43.0° S, 147.0° E)

• local area-level geographic resolution

When: Proceratopyge cryptica - Stigmatoa diloma trilobite zone, Singing Creek Formation, Maentwrogian (501.0 - 485.4 Ma)

• Stratigraphically equivalent fossils are found elsewhere in the Adamsfield Trough. The middle faunal horizon is 410-430m above the base of the Singing Formation.

• group of beds-level stratigraphic resolution

Environment/lithology: submarine fan; conglomeratic, cherty/siliceous wackestone and siltstone

• the singing creek formation comprises 720 m of quartz wacke turbidites interbedded with fossiliferous siltstone, siliceous conglomerates, and slump sheets.

Size class: macrofossils

Preservation: trace

Collection methods: chemical, mechanical,

• The specimens were collected in 1967-1968 by K.D. Corbett and are presently housed in the Geology Department, University of Tasmania (UT). All specimens have undergone tectonic distortion.

Primary reference: J. B. Jago. 1987. Idamean (Late Cambrian) trilobites from the Denison Range, south-west Tasmania. Palaeontology 30(2):207-231 [M. Patzkowsky/P. Borkow/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 8086: authorized by Mark Patzkowsky, entered by Phil Borkow on 19.06.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Porifera indet. Grant 1836
Lingulata
 Lingulida - Obolidae
? Lingulella sp. Salter 1866
? Obolus sp. Eichwald 1829
Trilobita
 Asaphida - Ceratopygidae
Proceratopyge sp. Wallerius 1895 trilobite
Proceratopyge gordonensis n. sp. trilobite
Pseudoyuepingia vanensis n. sp. trilobite
 Olenida - Aphelaspidae
Aphelaspis cantori n. sp. trilobite
Artiopoda
 Agnostida - Diplagnostidae
Denagnostus corbetti n. gen. n. sp.
Denagnostus corbetti n. gen. n. sp.