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Complete free sex dating site queensland

Complete free sex dating site queensland-8

suggest that Diprotodon survived much longer, into the Holocene.Other more recent researchers, including Lesley Head and Judith Field, favour an extinction date of 28,000 - 30,000 years ago, which would mean that humans coexisted with Diprotodon for some 20,000 years.

A modern example of this is the gender segregation of elephants where females and the young form family groups while lone males fight for the right to mate with all the females of the group.However, both the small and large diprotodonts coexisted throughout the Pleistocene and the size difference is similar to other sexually dimorphic living marsupials.Further evidence is the battle damage common in competing males found on the larger specimens but absent from the smaller.The overkill theory is that human hunters killed and ate the diprotodonts, causing their extinction.The extinctions appear to have coincided with the arrival of humans on the continent, and in broad terms, Diprotodon was the largest and least well-defended species that died out.The taxonomic implication is that Owen’s original Diprotodon optatum is the only valid species.

A single sexually dimorphic species allows behavioural interpretations.

The recent ice ages produced no significant glaciation in mainland Australia but long periods of cold and very dry weather.

This dry weather during the last ice age may have killed off all the large diprotodonts.

Other finds consist of age groupings of young or old animals which are first to die during a drought. Footprints of its feet have been found showing a covering of hair which indicates it had a coat similar to a modern wombat.

In 2012, a significant group of about 40 was found at Eulo, South-West Queensland. It was assigned to Diprotodontidae by Mc Kenna and Bell (1997). Until recently it was unknown how many species of Diprotodon had existed.

Similar hunting-out happened with the megafauna of New Zealand, Madagascar and many smaller islands around the world (such as New Caledonia, Cyprus, Crete and Wrangel Island), and at least in part, in the Americas—probably within a thousand years or so.