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Remains of some of the frog's oldest relatives have been uncovered



Ancient relatives of modern frogs were the size of a fingernail and lived next to the dinosaurs 216 million years ago.

Bone-sized bone fragments embedded in rock have been found, and experts believe that they date back to the late Triassic

The iliac section of the hip bone belongs to a group of amphibians known as Chinle frogs are known – a long extinct branch of modern frogs.

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  A frog who is a relative of modern amphibians was found in a piece of rock and paleontologists say it is 216 million years old. It is believed that they were so small that they fit the end of a human finger (the artist's impression is shown)

A frog related to today's amphibians was found in a rock, and paleontologists say It is said that it is 216 million years old. It is believed that they were so small that they fit the end of a human finger (the artist's impression is shown)

Viginia Tech paleontologists identified the fossil fragments and claim that they are the oldest known frogs in North America.

According to the researchers, the fragments are packed in rock and are smaller than a fingernail.

The researchers found that the fragments represent the first known and earliest equatorial remains of a Salientian – the group that contains live frogs.

It is also believed that they are the closest related animals in the fossil record of modern frogs.

The name of the fossil is derived from the site, the Chinle Formation of Arizona.

Dr. Michelle Stocke says the fossils discovered last May underscore the importance of collecting microfossils. [Stock65] Assistant Professor of Geosciences at Virginia Tech said, "This new find highlights how much more there is to learn about the Late Triassic ecosystem and how much we find if we look a little more closely.

"We know the charismatic archosaurs from the Chinle Formation, but we know that based on other ecosystems, they should make up a small percentage of the living animals.

"With this new focus, we can fill many of them, lacks smaller components in new discoveries.

It is believed that the hip bones are of several individuals and are long and hollow.

Dr. Stocker added, "The chinle frog could fit at the end of your finger."

Although the fossils belong to the Chinle frogs' family, they said that they do not yet name the specific fossils.

"We are foregoing the naming of this Chinle frog as we continue to process the microvertebrate matrix, which is likely to yield additional cranial and postcranial material that has the potential to be even more informative," Dr. Stocker added.

The research team said that the Chinle frog also bears similarities to Prosalirus and Triadobatrachus from the early Jurassic and early Triassic periods.

Stocker said, "These are the oldest frogs near the equator.

" The oldest frogs are approximately 250 million years old from Madagascar and Poland, but these specimens are from higher latitudes and not from equatorialia. "19659024" The section of the hipbone known as the ilium belongs to a group of amphibians known as Chinle frogs – a long-extinct branch of modern frogs (pictured) .The fossil belongs to a long-extinct branch of frogs ( stock ” class=”blkBorder img-share” />

The iliac section of the hip bone belongs to a group of amphibians known as chinle frogs – a long extinct branch of modern frogs (pictured) .The fossil belongs to a long-extinct branch of frogs (stick) [19659008] Sterling Nesbitt, also from Virginia Tech, said: "Now we know that tiny frogs from North America existed about 215 million years ago There were more members of the modern vertebrate communities in the Triassic period.

He said the new discovery also marks the first time that frog fossils were found directly among the early dinosaurs.

The student Rebecca Hawkins, who was part of the university The research team said, "I have the hard work of Paleontologists first-hand in their search for fossils. "

" Every day you have to brave long treks, heavy burdens, scorching heat, and much more. "

With the right combination of patience and happiness, you'll find something truly amazing "It's worth the effort, like a little frog's hip, which tells a great story."

Doctoral student Ben Kligman added: "Our development of methods of extracting sensitive bones from a small float It made them possible Exciting discovery.

"Our goal is to apply similar techniques in the Chinle formation to the early history of other small-grain animals, including Lizards, salamanders, turtles and mammals. "

The results were published by the online journal Biology Letters.

WHY WAS THE DINOSAURS EXTINCT?

Dinosaurs ruled and ruled the Earth about 66 million years ago, before suddenly dying out.

The term "Cretaceous Tertiary Extinction" refers to this mass extinction.

It has been believed for many years that the changing climate destroyed the food chain of the giant reptiles.

In the 1980s, paleontologists discovered a layer of iridium.

This is an element that is rare on earth but occurs in large quantities in space.

When this was dated, it coincided exactly with the time when the dinosaurs disappeared from the fossil record.

A decade later, scientists discovered the massive Chicxulub crater at the tip of the Mexican Yucatan Peninsula, dating back to the period in question.

Scientific consensus now says that these two factors are interrelated and both were probably caused by a massive asteroid crash to Earth.

With the projected size and impact speed, the collision would have caused a tremendous shockwave and probably triggered seismic activity.

The rainfall would have produced ash clouds that were likely to cover the entire planet and make it impossible for the dinosaurs to survive.

Other animals and plant species had a shorter intergenerational period, allowing them to survive.

There are several other theories about what caused the deaths of the famous animals.

An early theory was that small mammals ate dinosaur eggs, and another suggests that toxic angiosperms (flowering plants) killed them.


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