A carcupa of small, strange whales living in Australian waters. Is one of them

Australia has a unique group of ancestral ground stars, such as Kualas, Wombs and Walby. These furbus were made in isolation in the continent of the island and have become an Australian symbol.

But 27 to 23 million years ago, the coastal seas of Australia also had a home for marine stars, which was almost not found anywhere: wheel.

But not just an old wheel. This creature was included in all whales, called Memolodonide. If it is alive today, Memodonmides will be as Iconic Australian as Kangaroos.

Recent Gwash’s discoveries from coastal Victoria suggest that not only one or two species, but also a surprisingly strange whale’s carcupia, once called Australia a home.

Our latest search, a new nominee of about 25 25 million years of ancient Jovash, is included in his strange ranks, from the Wheel Genejites Dollardi. Our discovery has appeared in today Zoological Journal of Linn Society.

Belian Wheel without ballet

Today, some of the most famous whale species, such as blue and humpback whales, are the bullion whales. These marine giants use hair -like structures in their mouths, called Belin, is an important source of food to filter Plinton.

On the contrary, Memodonoids were small body (not more than three meters), large eyes, and short jaws standing with teeth. Despite this description, we know that Memorodonoids, in fact, were the Ballion Wheel… which had lack of ballet. They were like an off -shot by the central evolutionary branch that leads to today’s dental -free giants.

Olagosin has a history of all the Memodonted fossils from the late 27 to 23 million years ago. And in the southeast of Melbourne, three of the four nominees have been found on the Surf Coast in Victoria.

The first Memodonotide was found in 1932, and in 1939 the Memoden Colori was named. It had two bones of jaw bones with wide blood and nerve supply for the muscles of the face and lips. Surprisingly, the teeth were wearing gums, which suggested that he was fed from the shore (with a scratching trough).

In 2006, the local natural stool hinder later found the first species of a species named after him, Janjurates Huntri. The wheel separated a strong triangular snot with sharp tooth and powerful jaw muscles.

If Memoden’s scalp announces “I am a fish” then the skull of Geneges is screaming “Batter and wrap.” It is just as heavy metal as the wheel of the skull, which is left altogether.

Although Memoden Colorie and Janjits Hansi indicated amazingly extensive lifestyles for Memodonoids, how the details are exactly and when they have become so different from other whales.

A little new wheel

In 2019, school principal Ross Dolord was getting out of the stones along the coast in John Jack in Victoria, as well as a wheelchair.

Dollard gave his search to the Museum Victoria, where he was worked hard and repaired in the laboratory so that we could study it.

As we describe in our new article, the search for the dolord is a Memolodonide like Janjurates Hondredi, yet with different dental and ear bones to guarantee the name of a new generation: Janjurates Dolordi.

The incomplete fusion between the bones of the skull, the minimal wear of the teeth, and the open dental roots tell us that the animal was not fully grown when the animal was killed, possibly due to being a minor.

But how small was it?

Using a equation in view of the scalp width than the total length of the whales, we predicted that the Janjurates Dolordi was about two meters long – so low to fit a standard single bed.

This is the smallest foamic whale to be discovered in Australia, and perhaps the youngest of the teenager found here.

A heaven of a hot water

Janjurates Dolari and his fellow Memodontoids lived 26 to 23 million years ago during the late Olagosin warming. Victoria’s coastal water was as hot as the current northeastern New South Wales, and sea level was high.

Small, tooth wheels clearly did not mind on the long summer, sunlight waters: 80 % of the dozens of whale fossils found in Victoria from this period are mammals. On the contrary, in New Zealand, the stones of the same age have received only one Memolodone for a century of collecting a deep foam wheel.

Unfortunately, the Memodotonide Paradise is over. About 22 million years ago, Memodonoids had diminished, now they were not participating in the ongoing story of the Ballon Wheel evolution. About 23 million years ago, global cooling resulted in sea levels decreasing and the loss of a coastal residence of Memodonoids.

If we know how their story ends, the beginning is still a case. Our research about Gentitis Dollardi and his relatives shows that Memodontoids have begun long before their oldest famous fossils, probably 34 million years ago.

We suspect that in a wonderful isolation far from South Australia, their evolution was here.

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