Palaeobiogeographical affinities and palaeoceanographical significance of late Cretaceous Ostracoda (Crustacea) from Voluta-1, Otway Basin, southeastern Australia
Mark T Warne, Stephen J Gallagher
Alcheringa: an Australian journal of palaeontology | Informa UK Limited | Published : 2020
A continental shelf to upper continental slope ostracod fauna is documented from the late Cretaceous (late Turonian to Santonian) Belfast Mudstone in Voluta-1 of the Otway Basin, southeastern Australia. The fauna has palaeobiogeographical affinities with mid-late Cretaceous ostracod faunas of Western Australia, New Zealand, the Antarctic Peninsula and the Falklands Plateau. This distribution pattern probably reflects dispersal influenced by the opening of the Australo-Antarctic Gulf, and by clockwise gyre currents in the proto Southern Ocean. The presence of Philoneptunus sp. in this fauna suggests that the Australo-Antarctic Gulf was an important locus for deep sea colonization by Gondwanan..View full abstract
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Awarded by ARC SPIRT Grant
Awarded by ARC Basins Genesis Hub
Funding was provided to S.J.G. by an ARC SPIRT Grant [C00106901] and the ARC Basins Genesis Hub [IH130200012]. M.T.W. acknowledges research support from Deakin University.