Nannopterygius

Nannopterygius
Temporal range: Middle Jurassic to Early Cretaceous,
Holotype of N. enthekiodon (NHMUK PV OR 46497), displayed at the Natural History Museum, London
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: †Ichthyosauria
Family: †Ophthalmosauridae
Genus: †Nannopterygius
von Huene, 1922
Type species
†Nannopterygius enthekiodon (Hulke, 1871 [originally Ichthyosaurus)
Other species
  • †N. borealis Zverkov & Jacobs, 2020
  • †N. mikhailovi Yakupova & Akhmedenov, 2022
  • †N. saveljeviensis (Arkhangelsky, 1997)
  • †N. yakimenkae Yakupova & Akhmedenov, 2022
  • †N. yasykovi (Efimov, 1999)
Synonyms
  • Enthekiodon Hulke, 1870
  • Ichthyosaurus enthekiodon Hulke, 1871
  • Paraophthalmosaurus Arkhangelsky, 1997
  • Yasykovia Efimov, 1999
  • Yasykovia mittai? Efimov, 1999
  • Yasykovia sumini? Efimov, 1999

Nannopterygius (meaning "small wing/flipper" in Greek) is an extinct genus of ophthalmosaurid ichthyosaur that lived during the Middle Jurassic to the Early Cretaceous (Callovian to Berriasian stages). Fossils are known from England, Kazakhstan, Russia, and Norway and six species are currently assigned to the genus.

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