Paraisurus

Paraisurus
Temporal range: Aptian - Coniacian
Paraisurus macrorhiza2.jpg
Paraisurus macrorhiza from the Albian of the Kursk Region, Russia
Scientific classification
Kingdom:
Phylum:
Class:
Order:
Family:
Incertae sedis
Genus:
Paraisurus

Glückman 1957

Paraisurus is an extremely rare extinct genus of mackerel sharks of uncertain affinities. It is sometimes placed in the family Cretoxyrhinidae. It lived in the Early Cretaceous, and is known in Europe, North America, and Asia. It is mostly known from isolated teeth, which have a distinct shape. They are mesio-distally compressed, with a large labial protuberance. An associated dentition is known from the Weno Formation of Texas, USA. Though originally presumed to go extinct towards the end of the Albian, an occurrence from the lower Atco formation implies survival into the early Coniacian.

Species

Species within this genus include:

  • Paraisurus macrorhiza
  • Paraisurus compressus
  • Paraisurus amudarjensis

This page was last updated at 2022-05-17 09:49 UTC. Update now. View original page.

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