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Collection: 14.5km east of Northcliff Manjimup Shire, Western Australia, Australia
Age | 38 - 33.9 Ma (Paleogene) |
---|---|
Interval | Priabonian |
Lat/Long | -34.63,116.28 |
Co-ordinates derived from | based on nearby landmark |
Location | 14.5km east of Northcliff |
Mindat.org Region (for given coordinates) | Manjimup Shire, Western Australia, Australia |
Geographic Scale | outcrop |
Formation | Werillup |
Member | Pallinup Siltstone |
Stratigraphic Scale | group of beds |
Straigraphic Comments | The Werillup Formation is regarded as late Middle Eocene. This is supported by the presence of the Dasycladcian algae, Larvana and Neomeris (Cockbain 1969) and the foraminifer Asterocylinia(Cockbain 1967). The Pallinup Siltstone is of similar age, again from the presence of the nautiloid Aturia clarkei and foraminifer reported by Backhouse (1969), Cockbain (1968a) and Quilty (1969). The foraminifers correspond with Ludbrook's "Tortachilla microfauna" (Cockbain 1968c). |
Lithology Description | Cockbain (1968c) described the Pallinup Siltstone as typically 'white, brown or red siltstone and spongolite.'\r\n |
Lithology | siltstone |
Minor Lithology | cherty/siliceous |
Environment | offshore ramp |
Geology Comments | Was laid down in a shallow transgressive sea with negligible input of terrigenous material, allowing sponges to thrive. The Pallinup Siltstone formed in a shallow shelf environment with well circulated water of normal marine salinity. They inferred a depth of deposition of 76 m but Pickett (1982) suggested this estimate might be too great. Churchill (1973) and Clarke (1994) inferred a depth of deposition of approximately 150 m. The estimates of depth of deposition by Darragh and Kendrick (1980) |
Recorded Fossils
Accepted Name | Hierarchy | Preservation | Age |
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Aliquantula insolita species | Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Terebratellidae : Aliquantula : Aliquantula insolita | low Mg calcite body | 38 - 33.9 Ma Paleogene |
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!