Where: Western Australia, Australia (32.1° S, 115.9° E: paleocoordinates 34.1° S, 114.8° E)
• local area-level geographic resolution
When: Ascot Formation, Late/Upper Pliocene (3.6 - 2.6 Ma)
• STRATIGRAPHIC RELATIONS: Unconformably overlies Albian-Cenomanian Osborne Fm (Cockbain 1980). Minor transitional units (Balme 1980) separate the top of the Ascot Fm from both the Bassendean Sand and the Guildford Fm (Low 1971; Playford et al. 1976) THICKNESS: Approximately 20 m in figure well logs. AGE: Extended discussion of age in text (Kendrick et al., 1991), but generally regarded as Late Pliocene on the basis of molluscan and foraminiferal biostratigraphy, well-dated presumed correlatives and the age of bounding units. STRATIGRAPHIC POSITION: From "older" Ascot Formation, presumably lower in the stratigraphic succession, or encountered in wells further up dip.
• bed-level stratigraphic resolution
Environment/lithology: coastal; unlithified, brown, gray, yellow, calcareous sandstone
Size class: macrofossils
Preservation: original aragonite, original calcite
Collection methods: quarrying,
• COLLECTOR: Faunal list is a composite of decades of collecting effort, including that reported by Darragh and Kendrick (1971), Kendrick (1981), Ponder (1985), and Kendrick unpublished data. REPOSITORY: Collection assembled from material reposited in Western Australian Museum (WAM).
Primary reference: G. W. Kendrick, K.-H. Wyrwoll, and B.J. Szabo. 1991. Pliocene-Pleistocene coastal events and history along the western margin of Australia. Quaternary Science Reviews 10:419-439 [A. Miller/A. Hendy]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 63352: authorized by Austin Hendy, entered by Austin Hendy on 11.08.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Gastropoda | |
| |
Cerithium sp. n. sp., Bittium subgranarium
Cerithium sp. n. sp. Bruguière 1789 cerith snail
Bittium subgranarium cerith snail | |
Alaba pagodula snail | |
| |
Tylospira sp. n. sp.
Tylospira sp. n. sp. Harris 1897 snail | |
| |
Bedeva cf. crassiplicata murex snail
Bedeva paivae Crosse 1864 murex snail | |
Belloliva nymphalis, Oliva sp. n. sp.
Belloliva nymphalis olive snail
Oliva sp. n. sp. Bruguière 1789 olive snail | |
Nassarius ? nuttalli snail
Nassarius sp. Duméril 1806 snail | |
Natica gualteriana Récluz 1843 moon snail
Polinices (Conuber) cf. subvarians moon snail
Polinices (Conuber) balteatella Tate 1893 moon snail | |
Rissoina elegantula snail
Rissoina axisculpta snail | |
Solariella (Spectamen) "sp. A" Wood 1842 snail | |
Solariorbis sp. n. sp.
Solariorbis sp. n. sp. Conrad 1865 snail | |
Leiopyrga "sp. A" Adams 1863 top snail | |
Haliotis ? cyclobates abalone | |
Bivalvia | |
Nuculana (Scaeoleda) sp. n. sp. Iredale 1924 pointed nut clam
Nuculana (Scaeoleda) crassa pointed nut clam | |
Leionucula kalimnae nut clam | |
Limopsis depressa clam | |
Cucullaea corioensis McCoy 1876 clam | |
Glycymeris "sp. A" Da Costa 1778 clam | |
Arcopsis ? afra clam | |
"Arca ? ventricosa" = Lamarcka ventricosa
"Arca ? ventricosa" = Lamarcka ventricosa Lamarck 1819 clam | |
Zenatia (Zenatiopsis) sp. Darragh 1965 clam
Mactra "sp. A" Linnaeus 1767 clam | |
Chioneryx cardioides, Timoclea protomarica, Placamen sp., Tawera sp. n. sp., Notocallista (Striacallista) mollesta, Notocallista (Striacallista) pestis
Chioneryx cardioides Lamarck 1818 venus clam
Timoclea protomarica venus clam
Placamen sp. Iredale 1925 venus clam
Tawera sp. n. sp. Marwick 1927 venus clam
Notocallista (Striacallista) mollesta venus clam
Notocallista (Striacallista) pestis venus clam | |
Hemidonax chapmani clam | |
Tellina (Semelangulus) subdiluta, "Tellina (Quadrans) parvitas" = Quadrans, "Tellina (Pseudarcopagia) basedowi" = Macomona basedowi, Strigilla sp. n. sp.
Tellina (Semelangulus) subdiluta tellin clam
"Tellina (Quadrans) parvitas" = Quadrans tellin clam
"Tellina (Pseudarcopagia) basedowi" = Macomona basedowi Tate 1901 tellin clam
Strigilla sp. n. sp. Turton 1822 tellin clam | |
Carditidae indet. Fleming 1820 clam |