Scientists discovered a “look cute” ancient whale with big eyes and sharp razor teeth that devoured its prey off the coast of Australia about 26 million years ago.
The newly discovered Janjucetus lullardi is one of the earliest known cousins of filter-feeding Baleen whales, including the giant blue whale (Balaenoptera musculus). But J. Daraldi was much smaller than his living relatives, and his body was built to be compact for his speed.
Researchers have identified the new species from a skull found on the coast of southeastern Australia. According to a survey published Tuesday (August 12) in the Linnean Society’s journal Zoological Journal, the individual it belonged to was about 7 feet (2.1 meters) long, for many years.
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“It’s essentially a small whale with big eyes and mouths full of sharp sliced teeth,” the study of author Ruairidh Duncan, a doctoral student in paleontology at the Victoria Institute and Monash University in Australia, said in a statement. “Imagine a shark-like version of a Ballene whale.
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J. lullardi belonged to a small whale family known as mammals who lived in the warm shallow waters off Australia and New Zealand during the Oligo-century period (33.9 million to 23 million years ago). This is not long in the age of evolution, since the ancient ancestors of today’s whales first returned to the sea about 50 million years ago.
The principal of a school named Ross Dallard first spotted the fossil of J. Dallardi in 2019 while walking along the beach in Half Moon Bay near Melbourne. The fossil is part of the geological formation known as Jan Juc Marl, between about 24 million and 28 million years old. After discovering the fossils, Dallard donated them to the Victoria Museum.
“This type of public discoveries and reporting to museums is essential,” said senior research author Erich Fitzgerald, a senior curator of vertebrate paleontology at the Victoria Institute’s Museum, in a statement. “Ross’ discovery unleashed an entire chapter of whale evolution that you’ve never seen before, reminding you that world-changing fossils are in your own backyard.”
Researchers performed detailed analysis of fossils containing preserved teeth and inner ear structures using photographs, micro-canceling, and other techniques. The team is J. We speculated that Lullardi was a previously unknown species of mammal, and that he named it after Dullard. One reason researchers can say it was a young whale is because of lack of wear on the teeth.
Southeast Australia has become a hot spot for ancient whale fossils, with two other mammalian species recovering from the Jan JUC Marl Formation. Researchers continue to find fossils in the area and are hoping for more discoveries in the coming years, according to the statement.
“The area was once a cradle of some of the rarest whales in history, but we’re just beginning to uncover their stories,” Fitzgerald said.
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