Abrakurrie Limestone - Tommy Grahams Cave (Miocene of Australia)

Where: Western Australia, Australia (32.1° S, 126.2° E: paleocoordinates 43.9° S, 120.6° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Abrakurrie Limestone Formation, Early/Lower Miocene (23.0 - 16.0 Ma)

• STRATIGRAPHIC RELATIONS: From Abrakurrie Limestone, which unconformably overlies the Wilson Bluff Limestone (Late Eocene) and is overlain unconformably by the Nullabor Limestone (Middle Miocene). THICKNESS: From exposed unit with formation of about ~70 ft. AGE: Latest Early Miocene (Burdigalian)/Longfordian Australian stage according to Beu and Darragh (2001). Longfordian according to Lowry (1970). STRATIGRAPHIC POSITION: From unknown part of formation.

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified, shelly/skeletal, calcareous grainstone

• ENVIRONMENT: Deposited on shallow open shelf, and normal marine salinity. Warm-water.
• SPECIFIC LITHOLOGY: Porous bryozoan calcarenite and granule calcirudite. LITHIFICATION: Lithified, based on figures and facies description.

Size class: macrofossils

Collection methods: COLLECTOR: Unknown collector, presumably Tate (c. 1879) or Ludbrook (c. 1967). REPOSITORY: No repository reported in text.

Primary reference: D. C. Lowry. 1970. Geology of the Western Australian part of the Eucla basin. Geological Survey of Western Australia Bulletin 122:1-201 [W. Kiessling/W. Kiessling/W. Kiessling]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 70719: authorized by Austin Hendy, entered by Austin Hendy on 03.04.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for brachiopoda, bivalvia, and gastropoda. NOMENCLATURE: Not an authoritative publication, but using relatively current nomenclature and species-level designations.
Rhynchonellata
 Terebratulida - Terebratellidae
Bivalvia
 Pectinida - Pectinoidae
Spondylus gaderopoides McCoy 1876 scallop
"Pecten murrayanus" = Annachlamys murrayana Tate 1886 scallop