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Still Waters

Fossil of oldest-known scorpion species

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Still Waters

Scientists studying fossils collected 35 years ago have identified them as the oldest-known scorpion species, a prehistoric animal from about 437 million years ago. The researchers found that the animal likely had the capacity to breathe in both ancient oceans and on land.

The discovery provides new information about how animals transitioned from living in the sea to living entirely on land: The scorpion’s respiratory and circulatory systems are almost identical to those of our modern-day scorpions — which spend their lives exclusively on land — and operate similarly to those of a horseshoe crab, which lives mostly in the water, but which is capable of forays onto land for short periods of time.

The researchers named the new scorpion Parioscorpio venator. The genus name means “progenitor scorpion,” and the species name means “hunter.” They outlined their findings in a study published today in the journal Scientific Reports.

https://news.osu.edu/fossil-is-the-oldest-known-scorpion/

https://www.nature.com/articles/s41598-019-56010-z

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