Bivalves (and some others) of Cavan Fmn., loc. CB1, Taemas area (Devonian of Australia)

Where: New South Wales, Australia (35.0° S, 149.0° E: paleocoordinates 17.1° S, 173.8° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Cavan Formation (Murrumbidgee Group), Emsian (407.6 - 393.3 Ma)

• Conformably overlies Lower Devonian volcanics.

• formation-level stratigraphic resolution

Environment/lithology: marine; calcareous sandstone and calcareous siltstone

• "The Cavan Fmn consists of supratidal to shallow subtidal sediments, chiefly limestones with some sandy beds, that were deposited in a series of minor transgressions and regressions across a broad, planar area."
• "Pelecypods at CB1...occur in a sandy unit of the Cavan Fmn...Although defined as a limestone, the pelecypod horizon contains minor carbonate and is better described as a fine-grained sandstone and siltstone...small-scale, low angle cross-bedding...may have resulted from tidal flow.."

Primary reference: P. A. Johnston. 1993. Lower Devonian pelecypods from southeastern Australia. Memoir of the Association of Australasian Palaeontologists 14:1-134 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 35556: authorized by Michael Foote, entered by Michael Foote on 21.12.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Bivalvia
 Myalinida - Ambonychiidae
 Cardiidia - Sanguinolitidae
 Modiomorphida - Modiomorphidae
 Trigoniida - Schizodidae
Schizodus oweni n. sp. clam
 Nuculida - Nuculidae
Nuculopsis sp. Girty 1912 nut clam
 Protobranchia - Nuculanidae
Polidevcia cf. insolita pointed nut clam
Gastropoda
  -
Gastropoda indet. Cuvier 1797 snail
unclassified
  -
Chordata indet. Haeckel 1847
fish vertebrae
Echinodermata indet. Klein 1754
pelmatozoan ossicles
Rhynchonellata
 Athyridida - Athyrididae
Buchanathyris sp. Talent 1956
Anthozoa
 Tabulata -
Tabulata indet. tabulate coral