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Remains of an ancient ichthyosaurus discovered They flourished throughout most of the Mesozoic era and first appeared about 250 million years ago. So they are older than dinosaurs.
They flourished throughout most of the Mesozoic era and first appeared about 250 million years ago. So they are older than dinosaurs.
Ichthyosaurs are large extinct marine reptiles of the Mesozoic. One Ichthyosauria species is known to have existed in the Late Cretaceous until about 90 million years ago.
During the Early Triassic, ichthyosaurs were thought to have evolved from a group of obscure terrestrial reptiles that returned to live in the sea.
In general, the lifestyle of the animals was similar to the existence of modern dolphins. Over time, these early amphibian reptiles evolved from a group of obscure terrestrial reptiles and learned to swim more efficiently and their limbs evolved into fins. Eventually their body shape changed and became “fish-like”.
Ichthyosaurs, which began to give birth to live offspring, finally broke their ties with the land / Photo Wikipedia
The researchers studied the “crocodile” bones of amphibians, which preserve the internal microstructure of the bones. The results confirmed the age of the fossils to be about two million years after the mass extinction at the end of the Permian period. If we take into account the approximate time limits of the evolution of extinct marine reptiles, this pushes the origin and early appearance of ichthyosaurs to the beginning of the age of dinosaurs.
To them, this indicates that ancient animals had accelerated growth, increased metabolism and the ability to adapt to a purely oceanic lifestyle.
This forces us to rethink the theory of evolution and think that ichthyosaurs probably spread in the marine environment before their extinction.
– pointed out scientists.
The found remains of Ichthyosaurus overturn the popular view of the Age of Dinosaurs, the time when the main reptilian genus emerged. We can now assume that some groups of these ancient animals existed long before the landmark period, and that the remains of their oldest ancestors are even waiting to be discovered in older rocks in Svalbard and other parts of the world.
Ophthalmosaurus icenius Skeleton / Photo Wikipedia
Source: 24 Tv
I’m Maurice Knox, a professional news writer with a focus on science. I work for Div Bracket. My articles cover everything from the latest scientific breakthroughs to advances in technology and medicine. I have a passion for understanding the world around us and helping people stay informed about important developments in science and beyond.
