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Team finds 100-million-year-old sperm
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Chinese paleontologists along with their counterparts from Germany and Britain have discovered the oldest known animal sperm in the world in a piece of amber dating 100 million years ago, according to the Nanjing Institute of Geology and Palaeontology affiliated to the Chinese Academy of Sciences.
The research finding has been published in a paper on the Proceedings of the Royal Society B: Biological Sciences. Before this latest discovery, the oldest confirmed animal sperm dated to about 50 million years ago.
The sperm came from a species of crustacean named ostracod. It is minuscule 鈥 usually about 1 millimeter long 鈥 but widely distributed in oceans, lakes, swamps, rivers and ponds.
The researchers discovered the ostracod sperm in amber from the Cretaceous Period found in Myanmar. It weighs 0.676 gram and contains 39 ostracod specimens. More than one-third of the animal鈥檚 body length, bears a close resemblance to its modern forms.
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