B84F, Mary Creek, Ukalunda Beds (Devonian of Australia)

Where: Queensland, Australia (20.9° S, 147.2° E: paleocoordinates 1.9° S, 166.0° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Ukalunda Beds Formation, Early/Lower Emsian (409.1 - 402.5 Ma)

• Age call based on conodont Polygnathus perbonus found from base and 111.6 m above base of section HID (which has collections going up to 144 m).

•JA: originally entered as Emsian; the perbonus zone is early Emsian

• group of beds-level stratigraphic resolution

Environment/lithology: marine; calcareous siltstone and limestone

• Shallow marine
• Ukalunda Beds include siltstone, sandstone, limestone, and calcareous shale. Localities B220 and B610F occur in dark brown to khaki, highly jointed calcareous siltstone. Other Ukalunda spot localities not listed in detail. Douglas Creek siltstone (locality CL172) is grey to brown, well bedded, micaceous siltstone overlying the Douglas Creek limestones.

Size class: macrofossils

Collection methods: See PBDB coll. 8474 for corals.

Primary reference: G. A. Brock and J. A. Talent. 1993. Emsian (Early Devonian) brachiopods from the Ukalunda Beds and Douglas Creek, north Queensland. Memoirs of the Association of Australasian Palaeontologists 15:225-248 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 39874: authorized by Michael Foote, entered by Michael Foote on 10.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Generally brachiopods only; one conodont also reported from one section.
 Productida - Strophochonetidae
? Protochonetes sp. Muir-Wood 1962
 Strophomenida - Douvillinidae
"Mesodouvillina (Protocymostrophia) cf. dickinsi" = Cymostrophia (Protocymostrophia), Nadiastrophia patmorei
"Mesodouvillina (Protocymostrophia) cf. dickinsi" = Cymostrophia (Protocymostrophia)
 Spiriferida - Elythynidae
"Elythina sp." = Elythyna
"Elythina sp." = Elythyna Rzhonsnitskaya
 Spiriferida - Xenomartiniidae
? Quadrithyrina sp. Havlicek 1959
 Atrypida - Carinatinidae
 Atrypida - Atrypidae
 Orthida - Rhipidomellidae