100 million-year-old scorpion found preserved in amber

A 100 million-year-old scorpion that lived alongside dinosaurs but was smaller than a grain of rice has been discovered trapped in Burmese amber.

Electrokoenenia yaksha was a microwhip scorpion, or palpigrade that was a distant relative of modern day scorpions. From studying the amber from Hukawng Valley in northern Myanmar, a research team led by Michael Engel, of the University of Kansas and the American Museum of Natural History, concluded the specimen was a female about 1.47 millimeters long.

“Preservation in amber is perhaps the only medium through which such minute animals could be adequately characterized, their fine features and fragile forms too readily destroyed or rendered unidentifiable in sediments,” Engel, whose discovery was detailed in The Science of Nature journal, said in a statement.

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Engel, who discovered the scorpion while investigating the diversity of arthropods preserved in the amber, said further specimens might be discovered in amber deposits from India, the Dominican Republic, Lebanon, eastern North America and Archingeay in France.

This is the first microwhip scorpion fossil from the period known as the Mesozoic period and the only one of its order known of to be contained in amber. The only other fossil record from this order is encased in limestone from the Onyx Marble Formation, and is between 94 and 97 million years younger than Electrokoenenia yaksha.

But because Electrokoenenia yaksha looks so similar to other microwhip scorpions found today, the research team that also included and Diying Huang of the Nanjing Institute of Geology and Palaeontology believe it probably shared the same habitat.

The discovery is the latest in recent weeks to come from a rich trove of Burmese amber.

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