Fossil of a giant prehistoric fish found

[Still Waters 40,843]

A rare fossil of a prehistoric monster-fish's spiral of chainsaw-like teeth has been found in Russia. 

The scary Helicoprion was an extinct ancestor of the modern-day ghost shark or ratfish with an impressive set of nashers - that lived millions of years before the dinosaurs.

Discovered in an open coal mine in Volgograd, southern Russia, the latest example of the cartilaginous fish shows a fossilised arsenal of radial murder-teeth.

https://www.msn.com/en-gb/news/techandscience/mysterious-fossil-of-a-giant-prehistoric-fish-with-circular-saw-shaped-teeth-found-in-russia-and-scientists-think-it-could-be-the-extinct-ancestor-of-the-modern-day-ghost-shark/ar-BBXxr9O