US EditionMammal Ancestors Laid Eggs, and This 250-Million-Year-Old Fossil Finally Proves It
CT scans of a 250-million-year-old embryo found inside a rock nodule provide the first direct evidence that mammal ancestors laid eggs.
5 Articles
5 Articles
Mammal ancestors laid eggs, and this 250-million-year-old fossil finally proves it
In the aftermath of Earth’s most catastrophic extinction event, one unlikely survivor rose to dominate a shattered world: Lystrosaurus. Now, a stunning fossil discovery—an ancient egg containing a curled-up embryo—has finally answered a decades-old mystery about whether mammal ancestors laid eggs. Using advanced imaging technology, scientists confirmed that these resilient creatures did reproduce this way, likely producing large, soft-shelled eg…
A 250-million-year-old fossil containing a Lystrosaurus embryo has been discovered, revealing crucial information about the reproduction of mammalian ancestors. This discovery, made by an international team of researchers, is considered the first confirmation that these animals laid eggs, answering a question that has intrigued scientists for decades. Discovery of the fossil and its importance: The fossil was found during an expedition in 2008 a…
A 250 million-year-old riddle could finally be solved. Thanks to the analysis of an exceptional fossil, researchers are lifting the veil on the mode of reproduction of the distant ancestors of mammals.
How did the ancestral relatives of mammals continue to reproduce? A 250 million-year-old fossil provides the first direct proof that they laid eggs. Researchers have identified an egg in which the embryo of a Lystrosaurus was located. This was an early mammalian ancestor, the mass extinction at the border between Perm and [...] The article Mammal ancestor laid 250 million years ago still eggs appeared first on wissenschaft.de.
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