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The Fossil Fish Gives New Evolution After A Big Mass Extinction

A world analysis staff led by Giuseppe Marramà from the Institute of Paleontology of the College of Vienna found a brand new and well-preserved fossil stingray with distinctive anatomy, which enormously differs from living species. The discovery offers new insights into the evolution of those animals and light on the recovery of marine ecosystems after the mass extinction has occurred 66 million years in the past. The study was recently published within the journal Scientific Reviews.

Stingrays (Myliobatiformes) are a diverse group of cartilaginous fishes that are known for their venomous and serrated tail stings, that they use against other predatory fish, and occasionally towards people. These rays have a rounded wing-like pectoral disc and a protracted, whiptail that carries more serrated and venomous stings. The stingrays include the enormous rays of the world like the large rays, that can reach a wingspan up to seven meters and a weight of about 3 tons.

Fossil remains of stingrays are widespread, especially their isolated teeth. The Complete skeletons exist only from an extinct species coming from particular fossiliferous sites. More than 230 species of fishes have found that doc a tropical marine coastal atmosphere related to coral reefs which date again to about 50 million years ago within the interval called ‘Eocene.’

This fossil stingray has a flattened body and a pectoral disc in shape. What’s placing is the absence of sting and the swift tail, which isn’t lengthy as within the different stingrays, and doesn’t protrude posteriorly to the disc. This body plan isn’t identified in another fossil or residing stingray. Since this animal is exclusive and peculiar, the researchers named the new stingray Lessiniabatis Aenigmatica, which means “weird ray from Lessinia” (the Italian space the place Bolca is situated).

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