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Fishy Find Might Cast Light on Birth of Human Breathing

Posted: January 26th, 2014 | Author: | Filed under: Cankler Science News, Palaeontology | Tags: , , , , | Comments Off on Fishy Find Might Cast Light on Birth of Human Breathing

Fishy find Might Cast Light on Birth of BreathingThe emergence of life from water on to land is a pivotal moment in evolutionary history, and scientists say a new discovery may shed light on how it was able to happen.

Palaeontologists have verified a 200-year old hunch about an African fish and, in the process, showed how the first land animals developed the ability to breathe.

The scientists found the polypterus, a bony fish species, receives most of its oxygen not through gills but primitive nostrils on the top of its head.

Scientists had previously noticed similar holes, known as spiracles, in fossils of much more ancient species which are today regarded as the ancestors of modern land animals. Those species include the gogonasus, which inhabited the oceans 380 million years ago and was first identified by Flinders University palaeontologist Professor John Long.

His new research, in conjunction with a team based at the Scripps Research Institute in the US, has now been published in the journal Nature Communications. The discovery marks the first step in the evolutionary transition of similar ancient fishes to the land as tetrapods, or four-legged animals :: Read the full article »»»»


AUSTRALIA: Mesozoic Missing Link Found on Phillip Island

Posted: May 8th, 2012 | Author: | Filed under: Palaeontology | Tags: , , , , , , , | Comments Off on AUSTRALIA: Mesozoic Missing Link Found on Phillip Island

Mesozoic Missing Link Found on Phillip Island - Image via Victoria MuseumAustralian Scientists say the discovery of a new dinosaur species in South Gippsland sheds new light on Australia’s – Late Jurassic to Late Cretaceous – prehistoric period. A fossil found at San Remo, at Phillip Island, has been confirmed as belonging to a ceratosaur which has not been previously found in Australia

The fossil – an ankle bone found in 2006 – is the first evidence that this group of dinosaur roamed Australia, scientists preciously believed these carnivorous dinosaurs were limited to Western Gondwana, current day South America, Africa, Madagascar, India and Europe. The fossil find – outlined in the journal Naturwissenschaften this week – shows that Eastern Gondwana was rife with dinosaur diverstiy during a period in our prehistoric history previously thought to be dull :: Read the full article »»»»


CHINA: Feathered Tyrannosaurus Rex

Posted: April 9th, 2012 | Author: | Filed under: Palaeontology | Tags: , , , , | Comments Off on CHINA: Feathered Tyrannosaurus Rex

CHINA - Feathered Tyrannosaurus RexPalaeontologists in China have uncovered a species of giant feathered dinosaur that was an ancient relative of Tyrannosaurus Rex. Scientists have known for over a decade that some small dinosaurs had bird-like feathers. But a report in the journal Nature says the new species of tyrannosaur, which was 9 metres long and weighed about 1.5 tonnes, provides direct evidence of the existence of gigantic feathered dinosaurs and has implications for early feather evolution.

The theropod, which was an ancient relative of Tyrannosaurus Rex, was 40 times larger than any previously known feathered dinosaur. It has been given the name Yutyrannus Huali, a combination of Latin and Mandarin, which means “beautiful feathered tyrant”. Read the full article »»»»