Jan Juc Formation (Oligocene of Australia)

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

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Jan Juc Formation, Late/Upper Oligocene (28.4 - 23.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Jan Juc Fm, which conformably overlies the Demons Bluff Fm (Early-Late Oligocene), laterally correlates to Point Addis and Waurn Ponds Fms, and is conformably overlain by the Puebla Fm (Early Miocene). AGE: Late Miocene (Janjukian) according to Beu and Darragh (2001), p. 197. STRATIGRAPHIC POSITION: From unknown position within formation.

• bed-level stratigraphic resolution

Environment/lithology: coastal; siliciclastic sediments

• ENVIRONMENT: Environment not reported in text, presumably shallow marine siliciclastic setting.
• SPECIFIC LITHOLOGY: Unknown lithology, presumably siliciclastic. LITHIFICATION: Unknown, not stated in text.

Size class: macrofossils

Collection methods: COLLECTOR: Multiple, unknown collectors. REPOSITORY: Various repositories, including the Museum of Victoria, Melborne, Victoria, Australia.

Primary reference: A. G. Beu and T.A. Darragh. 2001. Revision of southern Australian Cenozoic fossil Pectinidae (Mollusca: Bivalvia). Proceedings of the Royal Sociey of Victoria 113(1):1-205 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 72199: authorized by Austin Hendy, entered by Austin Hendy on 27.05.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Restricted list, only comprising bivalvia and gastropoda from taxonomically limited publications. NOMENCLATURE: Modern nomenclature, with species-level assignments.
Echinoidea
 Spatangoida - Hemiasteridae
Psephoaster apokryphos n. sp. McNamara 1987 heart urchin
Gastropoda
 Neogastropoda - Volutidae
Athleta (Ternivoluta) anticingulata volute
SUBSPECIES: A. (T.) anticingulata anticingulata
 Sorbeoconcha - Cypraeidae
Umbilia (Umbilia) prosila Darragh 2002 cowry
Bivalvia
 Trigoniida - Trigoniidae
 Carditida - Crassatellidae
"Spissatella maudensis" = Eucrassatella maudensis
"Spissatella maudensis" = Eucrassatella maudensis Pritchard 1903 clam
 Cardiida - Veneridae
Proxichione etheridgei Pritchard 1903 venus clam
 Pectinida - Pectinoidae
Austrohinnites corioensis McCoy 1879 scallop
Serripecten sp. Marwick 1928 scallop
Talochlamys eyrei Tate 1886 scallop
? Notochlamys squamundata Beu and Darragh 2001 scallop
Semipallium foulcheri Tenison Woods 1865 scallop