Colville Sandstone - unamed locality, Eucla Basin (Miocene of Australia)

Where: Western Australia, Australia (29.4° S, 127.1° E: paleocoordinates 41.1° S, 121.8° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Colville Sandstone Formation, Early/Lower Miocene (23.0 - 16.0 Ma)

• STRATIGRAPHIC RELATIONS: From Colville Sandstone, which unconformably overlies the Wilkinson Range beds, Ilma neds, and Precambrian metamorphoc rocks in places The Colville Sandstone grades laterally into the Nullabor Limestone, and is overlain by quaternary deposits. THICKNESS: 61 ft thick at type section, and as much as 110 ft at its thickest. AGE: Early Miocene according to Beu and Darragh (2001). Batesfordian-Balcombian according to Lowry (1970). STRATIGRAPHIC POSITION: From base of the exposure.

• bed-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified, coarse-grained, calcareous sandstone

• ENVIRONMENT: Deposited on inner margin of wide continental shelf. Probably tropical.
• SPECIFIC LITHOLOGY: Calcareous sandstone. LITHIFICATION: Lithified, based on figures and facies description.

Size class: macrofossils

Preservation: cast, mold/impression

Collection methods: COLLECTOR: Lowry (c. 1970) and 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 70724: 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.
Gastropoda
 Cerithioidea - Turritellidae
"Turritella (Colpospira) cf. conspicablis" = Colpospira, "Turritella (Maoricolpus) murrayana" = Maoricolpus murrayana, Gazameda acricula
"Turritella (Colpospira) cf. conspicablis" = Colpospira turret shell
"Turritella (Maoricolpus) murrayana" = Maoricolpus murrayana Tate 1885 turret shell
Gazameda acricula Tate 1893 turret shell
 Cerithioidea - Diastomatidae
Diastoma sp. Deshayes 1850 snail