Home U.S NSW University of New England researchers discover opalised fossil dinosaur teeth at...

NSW University of New England researchers discover opalised fossil dinosaur teeth at Lightning Ridge


Incredible opalised dinosaur teeth found in the Outback shed new light on how three giant beasts weighing 90,000kg and measuring 40m coexisted in Australia

  • Fossilised dinosaur teeth were found at Lightning Ridge, in north-west NSW 
  • Researchers said the area has yielded a rich bounty of fossils over the years
  • Three sauropod species are believed to have co-existed in the area at the time

An incredible discovery of fossilised dinosaur teeth offer a fresh insight into how three sauropod species lived in Australia millions of years ago.

The teeth were discovered at Lightning Ridge, a small outback town in north-western New South Wales, near the Queensland border.

Researchers from the University of New England said the area has yielded a rich bounty of dinosaur fossils over the years, and is unique in that all of the fossils found there are completely formed in opal.

Sauropod species include dinosaurs such as Brontosaurus and Brachiosaurus – two of the largest beasts to have walked the earth weighing in at 90,000kg and measuring 40m long.

The teeth were discovered at Lightning Ridge, a small outback town in north-western New South Wales, near the Queensland border. Pictured: the opalised sauropod teeth close up

The teeth were discovered at Lightning Ridge, a small outback town in north-western New South Wales, near the Queensland border. Pictured: the opalised sauropod teeth close up

Although their fossils are common in central Queensland, there has been limited evidence of their existence and lifestyle from NSW. 

Timothy Frauenfelder, lead researcher and PhD candidate said: ‘Teeth are one of the smallest bones in a sauropod and there is an abundance of them at Lightning Ridge. 

‘Although small in comparison to other sauropod fossils, which can be over one metre long, teeth can be incredibly useful in assessing ecology and diversity.

‘Unlike us, sauropod dinosaurs don’t have different types of teeth such as molars or incisors, and differing tooth shapes can give us an idea about how many species were living in a particular area.’ 

This led researchers to conclude three species co-existed in the area.

The team also conducted a microwear analysis to view feeding features preserved on a tooth’s wear facet.

Environment reconstruction of the Griman Creek Formation, Lightning Ridge, New South Wales, Australia. Showing three species of sauropod dinosaurs (varying colourations) feeding at varying heights within the forest canopy

Environment reconstruction of the Griman Creek Formation, Lightning Ridge, New South Wales, Australia. Showing three species of sauropod dinosaurs (varying colourations) feeding at varying heights within the forest canopy 

‘As sauropods eat, they produce large facets that preserve varying degrees of features such as pits and scratches,’ Mr Frauenfelder said. 

‘The frequencies of these features enable us to determine how high an animal was feeding in the canopy, or how hard the food was. 

‘Comparing features between teeth, allows us to interpret how these giant dinosaurs co-existed.’

Mr Frauenfelder was able to determine that at least two of the species fed at different levels within the canopy.

One species fed at ground levels – less than one metre above ground – while the other was feeding mid-canopy, or one to 10 metres above ground. 

The study was published in the Journal Lethaia.

LEAVE A REPLY

Please enter your comment!
Please enter your name here

Must Read

WHO expert issues passionate rallying call to nations after labelling vaccine 'great tool'

The World Health Organisation's Dr Margaret Harris told Sky News that physical distancing, wearing masks and attention to hygiene all need to remain...

The OK! Beauty Edit is here – get yourself £65 worth of luxury products from just £13

The OK! Beauty Edit has landed. Each month their in-house experts will handpick a minimum of 5 premium products from big beauty brands as...

Outrage as mystery prankster sets up memorial bench mocking the death of Margaret Thatcher

Outrage as mystery prankster sets up memorial bench mocking the death...

DeMar DeRozan came 'face-to-face' with Kylie Jenner's alleged stalker and 'chased' him away

Kylie Jenner's alleged stalker came 'face-to-face' with NBA player DeMar DeRozan...

Lily Allen celebrates one month of being smoke-free

Lily Allen celebrates one month of being smoke-free as she shares...