Ledge, Bird Rock, Torquay (Oligocene of Australia)

Where: Victoria, Australia (38.3° S, 144.3° E: paleocoordinates 52.8° S, 142.2° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Jan Juc Formation, Chattian (28.1 - 23.0 Ma)

• STRATIGRAPHIC RELATIONS: From Jan Juc Fm, which regionally conformably overlies the Angahook Fm. Stratigraphy is discussed by Singleton (1968) and Abele et al. (1976). AGE: The age of the assemblage is Late Oligocene-Early Miocene and is type Janjukuan. STRATIGRAPHIC POSITION: From unknown part of formation.

• formation-level stratigraphic resolution

Environment/lithology: marine; glauconitic, argillaceous siltstone and glauconitic sandstone

• ENVIRONMENT: Environment not reported in text, siliciclastic.
• SPECIFIC LITHOLOGY: Glauconitic clayey silts through marls to glauconitic calcarenite. LITHIFICATION: Unknown lithification.

Size class: macrofossils

Collection methods: COLLECTOR: Probably multiple collectors from same locality, including the author, and combination with existing museum collections. REPOSITORY: Museum of Victoria.

Primary reference: T. A. Darragh. 2002. A revision of the Australian genus Umbilia (Gastropoda: Cypraeidae). Memoirs of the Museum of Victoria 59(2):355-392 [A. Miller/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 176296: authorized by Pete Wagner, entered by Pete Wagner on 06.02.2016, edited by Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for gastropoda, bivalvia and scaphopoda. NOMENCLATURE: Utilized modern nomenclature, with species-level assignments.
Gastropoda
 Sorbeoconcha - Cypraeidae
Umbilia (Umbilia) prosila n. sp. Darragh 2002 cowry
Chondrichthyes
 Heterodontiformes - Heterodontidae
Cestracion cainozoicus Chapman and Pritchard 1904 bullhead shark
 Squaliformes - Squalidae
Acanthias geelongensis Chapman and Pritchard 1904 dogfish shark