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Giant eagles and scavenging vultures shared the skies of ancient Australia

New fossils reveal Australia was once home to a much greater diversity of huge eagles and vultures, which died off alongside ‘giant wombats’ and ‘marsupial lions’. ....

The Green , New South Wales , South Australia , Megalania Varanus , Naracoorte Caves , Green Waterhole , Fossil Cave , Late Pleistocene , Australian Birds , Australian Megafauna , Birds Of Prey , Extinct Birds , Egafaunal Extinction ,

"Examining sediment infill dynamics at Naracoorte cave megafauna sites " by L. J. Arnold, M. Demuro et al.

Relatively little is known about the long-term sediment accumulation dynamics of Naracoorte Cave Complex (NCC) solution pipe cavities, and many of the megafauna-bearing infill deposits at this globally significant Australian Pleistocene fossil locality remain partially dated or lack any numerical age control. In this study, we assess the suitability of three different luminescence dating signals for improving existing chronologies at six Late and Middle Pleistocene NCC sites (n = 22 samples), and we undertake multi-site examinations of NCC sediment infill dynamics spanning the last 550 thousand years (ka). Modern analogue samples collected from above and beneath two active cave entrances confirm that single-grain OSL, single-grain TT-OSL and multi-grain pIR-IRSL signals can be reset down to insignificant residual levels (<10−1–100 Gy) when compared with the natural dose ranges of interest for most NCC palaeontological applications. Replicate luminescence dating comparisons perfo ....

South Australia , Naracoorte Cave Complex , Australian Pleistocene , Middle Pleistocene , Late Pleistocene , Smoke Tortoise Cave , Australian Megafauna , Naracoorte Caves , Ost Ir Irsl , Ingle Grain Osl , Ingle Grain Tt Osl ,