The long, winding reptile, which lived about 310 million years ago, is named after the legendary giant. Snake In the Viking mythology that once fought against Thor, the god of thunder in Norse mythology.
But, VikingThe mythical “snake of the world”, named Jörmungandr, was large enough to wrap his body around the entire globe, an ancient reptile. Jormungand Volty (YOR’-mun-gund BOL’-tee) is only a few inches long.
This creature is Microsauria (“small” Lizards“), An early group of reptiles that were one of the first vertebrates (spine-bearing animals) to evolve on land. J. Volty Its slender, slender body, short limbs, dull skull, and very well-preserved fossils retained the impression of special scales that repel the dirt of modern reptiles. Together, these features suggest that small microdragons dig underground tunnels and slide like snakes, researchers report in a new study.
The archosaur fossils are in the Chicago Field Museum collection and come from Amazon Creek, Illinois. Here, the deposits Carboniferous (Approximately 359 to 299 million years ago). Microsaurus represents some of the oldest fossils of amniote. Vertebrates develop embryos in fluid-filled eggs with multiple membrane layers. University of California Paleontology Museum In Berkeley.
J. Volty (“Volty” is in favor of the late paleontologist John R. Bolt, an honorary curator of fossil amphibians and reptiles at the Field Museum) is a group called Recumbirostra that has existed for about 40 to 50 million years. It is a microsaurus of. “From the middle to the early Carboniferous Permian [299 million to 251 million years ago]”. Aryan Mann, a postdoctoral fellow in paleontology at the Smithsonian National Museum of Natural History in Washington, DC, said the principal investigator.
Mann studied Microsaurus while earning a PhD from the Department of Earth Sciences at Carleton University in Ottawa, Canada.He previously described two Microsaurus species and named the genus Diablo rotor (“Devil digging”) Inferno Benator (“Hell Hunter”), according to 2019 statement..
Mann told Live Science that most of the fossils in the Microsauria group came from the Permian. J. Volty It provided scientists with a rare glimpse of the early Microsaurus. Only 1.9 inches (5 cm) from the nose to the tip of the tail, the body is “streamlined, cylindrical and relatively smooth,” suggesting that the chunky limbs and tapered coccyx have a short, rounded tail. It was. The tails of some modern geckos and some lizards use their tails to store fat, “the study author writes.
Oval raised scales cover the body, and the tough skull has several fused bones that are likely to help Microsaurus withstand the pressure of drilling, Mann said.
“I think it’s like the first person to dig a hole. Your head will hit the soil and dig a hole like a modern reptile,” Mann said. J. Volty’The elongated shape allows the microsaurus to wriggle and writhe the ground like a snake, “the scales appear to have a pattern similar to that found in modern fossils. [digging] Reptile scales that may have been used to clean. “
If the microsaurus is certainly an early amniote, J. VoltyThe snake-like shape (and other microsaurus elongated bodies) provides a new perspective on how rapidly an animal’s body diversifies as it crawls from the sea to dry land. Most early amniotes look like small lizards, and current interpretations of fossil records suggest that the transition to more diverse forms was slow. However, J. Volty According to Mann, other long-body Microsaurus suggests that this is not the case.
“This means that the evolution of amniotes was an explosive radiation, where as soon as the amniotes landed, they diversified into all these different body shapes,” Mann said. Said. “It’s a story that’s very different from what we’re thinking now. We might have had almost as much diversity as we’re seeing today very quickly.”
The findings were published in the journal on July 21st. Royal Society Open Science..
Originally published in Live Science.
A small ancient reptile named after the enemy that ends the world of Thor
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