description Helicoprion bessonowi Overview
Helicoprion bessonowi was a Permian eugeneodont, an extinct cartilaginous fish related to sharks and chimaeras. Alexander Karpinsky named it in 1899 from a distinctive spiral arrangement of fossil teeth found in the Ural region of Russia. The position of this tooth whorl was debated for decades, but preserved jaw material shows that it occupied the lower jaw, where successive teeth formed a tightly coiled cutting structure.
insights Ranking position
Helicoprion bessonowi ranks #89 of 249 in the Fossil ranking, behind Glyptodon clavipes, ahead of Homo longi (Dragon Man, CAGS-HV-PA-01).
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