Middle to Upper Eocene stratigraphic nomenclature and deposition in the Eucla Basin

Eocene stratigraphic succession in the Eucla Basin of South Australia and correlation to major regional sea-level events

“…These activities require a tested lithostratigraphic scheme as an aid in mineral exploration of the prospective Eocene rocks. Due to the extent, isolation and poorly exposed nature of the basin, the complex and confused stratigraphic situation of these prospective sediments have resulted in a need for the stratigraphic nomenclature to evolve (Clarke et al, 2003;Hou et al, 2003c). The objectives of this paper are to rationalise the Eocene stratigraphic succession of the eastern Eucla Basin and its evolution by correlating to the major sea-level events, based on the understanding of selected drillholes and discontinuous outcrops and previous works (eg., Benbow, 1990Benbow, , 1993Benbow et al, 1995a;Clarke et al, 2003;Hou et al, 2003a,b,c).…”

Fossil craniid brachiopods (Craniata) of Australia and New Zealand

“…The Nanarup Limestone of southern WA is also dominated by bryozoa but includes brachiopods (nine species), bivalve and gastropod molluscs, echinoids, nautiloids, crabs and crinoids (Craig 1997). The Wilson Bluff Limestone of southern WA is fine-grained to chalky, dominated by bryozoa and echinoids and locally rich in molluscs and brachiopods (Clarke et al 2003). A single dorsal valve of D. allani was collected from the Blanche Point Formation, Aldinga, South Australia, which ranges in lithology from limestone through marl to biosiliceous clay, and contains a wide range of invertebrate fauna together with penguin bones (James & Bone 2000).…”

Further Mollusca from the late Eocene Pallinup Formation, Eucla Basin, Western Australia

“…The specimens from the Thompson Road were collected by sieving the fossiliferous matrix, so the relative abundance of the specimens of each taxon is probably representative of the occurrence of the taxon at that locality. Since the two previous papers on the molluscs were published, there has been some revision of the stratigraphy and basin nomenclature of the area by Clarke et al (2003). The Pallinup Siltstone was redefined as the Pallinup Formation and the term Bremer Basin was abandoned for the Eocene succession in favour of the Eucla Basin for the Eocene sediments that extend from west of Albany into South Australia.…”