Complete News World

Saccorhytus Coronarius is not an ancestor of humans

Saccorhytus Coronarius is not an ancestor of humans

Sciences Saccorhytus Coronarius

Humans are not descended from this little monster

A 3D model of Saccorhytus Coronarius shows the funny little fellow

A 3D model of Saccorhytus Coronarius shows the funny little fellow

Source: Philip Donoghue et al

It’s egg-shaped, has spikes and a massive esophagus: Saccorhytus Coronarius could be in a children’s movie. Scientifically, it has been wrongly judged thus far. Now researchers have new insights into the fossil.

DrIt’s a spiky little monster-like creature with a big mouth and no anus that doesn’t belong to our early human ancestors. Scientists have assumed so far. Now an international team of researchers is in the journal “temper nature“It’s better. According to this, the fossils from Saccorhytus Coronarius Because some of the body openings are misinterpreted, they have been wrongly assigned to the animal group of new mouths (deuterostomy), to which we humans also belong.

Elaborate X-rays of hundreds of fossils showed that the animal should instead be assigned to the so-called feathered animals (Ecdysozoa), which include insects, spiders, and tardigrades. 3D model published by researchers Saccorhytus Coronarius It shows an egg-shaped organism with an earring in the middle, which occupies a large part of the surface of the body.

Read also

July 5, 2022, USA, New York: The skeleton of Gorgosaurus is on display at Sotheby's in New York.  The skeleton of a Gorgosaurus will be auctioned in New York at the end of July.  Photo: Julia Nikhinson / AP / dpa +++ dpa picture radio +++

Its body is covered with many small spines and some large spines. According to the study, it is possible that the small animal lived on the sea floor and may not be able to crawl or crawl. Eating and defecation occur through the mouth.

See also  Telephoto gamma ray flash does not match the image

The first discovery of Saccorhytus Coronarius It comes from Shaanxi Province, China. The layer of rock from which the fossil arose dates back to 530 million years ago. The diameter of the fossa is about a millimeter. It has holes around its mouth. They were initially interpreted as the so-called nostril pores, a rudimentary feature of new mouths. But this interpretation of the vents was wrong, researchers led by Zhang Huaqiao of the Nanjing Institute of Geology and Paleontology of the Chinese Academy of Sciences now show.

Read also


They collected hundreds of other fossils of the same type, some of which have been much better preserved than previous finds. The researchers took X-ray images from different angles and used them to create a 3D computer model Saccorhytus Coronarius to construct. Scientists were able to establish that the so-called gill pores were in fact spinal cavities. “We believe this Saccorhytus helped capture and treat its prey,” says co-author Huaqiao Zhang.

who – which Saccorhytus Coronarius The anus does not have a special feature. Researchers assume that her ancestors had an anus, but it regressed. How the anus arose – and in some cases disappeared – in animals is important to understanding the evolution of animals and their bodies.

You can listen to the WELT podcast here

To view embedded content, your revocable consent to the transfer and processing of personal data is required, since such consent is required by embedded content providers as third-party providers [In diesem Zusammenhang können auch Nutzungsprofile (u.a. auf Basis von Cookie-IDs) gebildet und angereichert werden, auch außerhalb des EWR]. By setting the toggle switch to ON, you agree to this (which can be revoked at any time). This also includes your consent to the transfer of certain personal data to third countries, including the United States of America, in accordance with Article 49(1)(a) of the General Data Protection Regulation (GDPR). You can find more information about this. You can withdraw your consent at any time via the toggle and via Privacy at the bottom of the page.

“Aha! Ten Minutes of Everyday Knowledge” is WELT’s Knowledge Podcast. Every Tuesday and Thursday we answer daily science questions. Subscribe to the podcast at spotifyAnd the Apple PodcastAnd the DeezerAnd the amazon music Or directly via RSS feed.