Australian scientists discover two new species of long-necked aquatic dinosaurs (Figure)
A newly discovered dinosaur species, depicted by an artist (Photo: Australian Star Island Daily)
Chinanews.com, July 28, 2006 — According to a report from the Singapore Island News, scientists at the University of Adelaide in Australia have uncovered evidence of ancient marine life that once thrived when Australia was part of the Antarctic Circle, under a prehistoric ocean. These findings suggest a new type of dinosaur, which could help researchers understand how ancient ecosystems responded to climate shifts.
The two newly identified long-necked dinosaurs, named UMOONASAURUS and OPALLIONECTES, bear a striking resemblance to the legendary "Loch Ness Monster." Both are plesiosaurs, a group of aquatic reptiles that lived around 115 million years ago during the Cretaceous period.
A team led by paleontologist Dr. Benjamin Kear analyzed 30 opalized dinosaur fossils discovered in the Coober Pedy region and confirmed the existence of these two new species. This discovery marks the first time aquatic dinosaurs have been found in Australia, according to Dr. Cole, who emphasized the significance of this finding.
Dr. Cole explained that these creatures lived in an ecosystem similar to modern-day Antarctica. Previously, there was no clear evidence of marine reptiles in cold climates. The UMOONASAURUS, measuring about 2.4 meters in length, is known as the "Jurassic-era killer whale" due to its streamlined body and is named after the local Aboriginal term for the Coober Pedy area.
OPALLIONECTES, on the other hand, was much larger, reaching up to six meters in length. It had sharp, needle-like teeth, ideal for hunting squid and small fish in the icy waters of the ancient Antarctic Ocean.
This discovery has sparked excitement among Australian scientists. Dr. Cole noted that studying these plesiosaurs can provide valuable insights into how past climate changes affected marine life. He pointed out that these animals lived in icy oceans about 111.5 million years ago, but their habitat disappeared as the planet warmed over the next five million years.
"Understanding how ancient species adapted or vanished due to climate change is crucial," he said. "This knowledge is more relevant than ever today as we face similar environmental challenges."
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