MEGAFAUNA: Cave painting may illustrate giant extinct flightless bird that roamed Australia around 40,000 years ago

Cave painting image by Ben Gunn found here and here. Pencil drawing of Genyornis newtoni by Nobu Tamura found here

Researchers believe that this cave painting may depict Genyornis—a giant flightless bird that roamed Australia “until their sudden disappearance [4]0,000 years ago, about the same time that humans arrived in Australia.” Today, the only large flightless birds that inhabit Australia are the emu (Dromaius novaehollandiae) and the southern cassowary (Casuarius casuarius). Feral ostriches occur in Australia too. More via GrrlScientist and ABC Darwin:

Archaeologist Ben Gunn said the giant birds became extinct more than 40,000 years ago.

“The details on this painting indicate that it was done by someone who knew that animal very well,” he said.

He says the detail could not have been passed down through oral storytelling.

“If it is a Genyornis, and it certainly does have all the features of one, it would be the oldest dated visual painting that we’ve got in Australia,” he said.

“Either the painting is 40,000 years old, which is when science thinks Genyornis disappeared, or alternatively the Genyornis lived a lot longer than science has been able to establish.”

Mr Gunn says there are paintings of other extinct animals right across the area including the thylacine, or tasmanian tiger, the giant echidna and giant kangaroo.

“It does give you a window back to a time that you can pinpoint, and in the case of the Genyornis it’s a very long picture,” he said.

The traditional owners of the land in the Northern Territory say they are excited the painting could be Australia’s oldest dated rock art.

On the Net:

  1. Ancient Diets Of Australian Birds Point To Big Ecosystem Changes

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UNDERWATER ARCHAEOLOGY: Ancient fish trap found off coast


An ancient fish trap that now functions as a reef has been discovered from aerial photography. It is thought that the large ancient anthropogenic structure trapped anadromous fish species that used the River Teifi at Poppit in Pembrokeshire during a time when sea levels were much lower. From the BBC:

Dr Ziggy Otto, lecturer in the coastal zone and marine environment research unit at Pembrokeshire College, said: “There can be but little doubt that this rather impressive – and quite apparently man-made – structure is an ancient fish trap.

“The structure is entirely underwater (at all stages of the tide); it has never been surveyed, but is approximately 260m long, and is possibly made of locally quarried rock, although use of boulders carried in during the last glaciation cannot be ruled out either.

“Its age is unknown, but because of its now entirely sub-tidal position, this fish trap is very old, possibly dating back more than 1,000 years, when sea level was lower and the entrance to the Teifi Estuary further towards the Poppit side.”

.       .       .

[T]he rocks forming the trap are now covered in worms, algae and sea anemones.

“This fish-trap has therefore metamorphosed from an entirely man-made structure to a naturally functioning reef, which adds to the biological diversity not only of the local area but also to that of the Cardigan Bay Special Area of Conservation as a whole,” [Jennifer Jones, a scientific diver] added.

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