Section 417, Georgina Basin, Thorntonia Area (Cambrian of Australia)

Where: Queensland, Australia (19.5° S, 138.9° E: paleocoordinates 26.8° N, 172.6° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Ptychagnostus atavus trilobite zone, Gowers Formation, Floran (504.5 - 503.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: sand shoal; lithified, phosphatic lime mudstone

• intracratonic basin; environment classification based on lithology. From Kruse (2002), not this paper.
• more or less phosphatic, locally silicified, planar laminated calcimudstone with intervals of hardgrounds, nodules and phoscrete crusts and lags. Component phosphate grains include peloids, coated grains intraclasts and bioclasts. From Kruse (2002), not this paper.

Size class: microfossils

Preservation: replaced with phosphate

Collection methods: bulk,

• All fossils are deposited in the Commonwealth Palaeontological Collections (CPC), Geoscience Australia, Canberra, under accession numbers 39705–39777.

Primary reference: M. J. Vendrasco, S. M. Porter, A. Kouchinsky, G. Li, and C. Z. Fernandez. 2010. New data on molluscs and their shell microstructures from the Middle Cambrian Gowers Formation, Australia. Palaeontology 53(1):97-135 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 93409: authorized by Pete Wagner, entered by Pete Wagner on 18.01.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Corystos thorntoniensis
  -
Corystos thorntoniensis n. gen. n. sp.
Corystos thorntoniensis n. gen. n. sp. Vendrasco et al. 2010
Rostroconchia
 Tuarangiida - Pseudomyonidae
Pseudomyona queenslandica
Pseudomyona queenslandica Runnegar and Jell 1976
Helcionelloida
 Helcionellida - Pelagiellidae
Pelagiella deltoides
Pelagiella deltoides Runnegar and Jell 1976
 Helcionellida - Yochelcionellidae
Yochelcionella snorkorum n. sp., Yochelcionella saginata n. sp., Eotebenna pontifex
Yochelcionella snorkorum n. sp. Vendrasco et al. 2010
Yochelcionella saginata n. sp. Vendrasco et al. 2010
Eotebenna pontifex Runnegar and Jell 1976
  - Stenothecidae
"Ribeiria junior" = Acanthotheca junior, Mellopegma georginensis
"Ribeiria junior" = Acanthotheca junior Runnegar 1996
Mellopegma georginensis Runnegar and Jell 1976
  - Helcionellidae
Protowenella flemingi, Figurina "sp.", Anabarella simesi, ? Anhuiconus agrenon n. sp.
Protowenella flemingi Runnegar and Jell 1976
Figurina "sp." Parkhaev 2001
Anabarella simesi MacKinnon 1985
? Anhuiconus agrenon n. sp. Vendrasco et al. 2010