Showing posts with label Progura Birds. Show all posts
Showing posts with label Progura Birds. Show all posts

Saturday, July 16

Prehistoric Egg Identified

The only almost completely intact Genyornis eggshell ever discovered. It was located by 
N. Spooner and collected by Gifford H. Miller, South Australia. The presence of four 
puncture wounds on the egg indicates that it was predated by a scavenging marsupial. 
Credit: Gifford H. Miller




A years-long scientific controversy in Australia about what animal is the true mother of gigantic primordial eggs has been settled. In a recent study, scientists from the University of Copenhagen and their global counterparts showed that the eggs could only be the last of a rare line of megafauna known as the “Demon Ducks of Doom.”

Consider living next to a 200 kg, two meters tall bird with a huge beak. This was the situation for the first people who settled in Australia some 65,000 years ago.

Genyornis newtoni, the last members of the “Demon Ducks of Doom,” coexisted there with our ancestors as a species of a now-extinct family of duck-like birds.

According to a recent study by experts from the University of Copenhagen and an international team of colleagues, the flightless bird lay eggs the size of cantaloupe melons, presumably to the delight of ancient humans who most likely gathered and consumed them as an essential protein source. The research was just released in the journal Proceedings of the National Academy of Sciences.

Since experts initially found the 50,000-year-old eggshell pieces 40 years ago, the huge eggs have been the subject of debate. It wasn’t known until recently if the eggs genuinely belonged to the family of “demon-ducks,” also known as dromornithids.

Since 1981, the identity of the bird that lay the eggs has been a source of controversy for scientists all across the globe. While some proposed Genyornis newtoni, others thought the shells were from Progura birds, an extinct member of the megapode group of species. Progura were “chicken-like birds” that only weighed between five and seven kilos and had huge feet.  READ MORE...