Stichopterus is an extinct genus of chondrostean ray-finned fish that lived during the Early Cretaceous epoch in Asia.[1][2] It has been found in Russia (Murtoi Formation) and Mongolia.[2]

Temporal range: Early Cretaceous, 125–112 Ma
Scientific classification

Reis, 1909
Binomial name
Stichopterus woodwardi
Reis, 1909
Other species
  • Stichopterus gracilis (Rohon, 1890)
  • Stichopterus popovi Jakovlev, 1986[1]
  • Stichopterus reissi Jakovlev, 1977

The type species, Stichopterus woodwardi, was named and described in 1909. Since then, up to three other species have been named or were reallocated to Stichopterus, respectively.[3]

Stichopterus is similar to Peipiaosteus from China. Both genera belong to the family Peipiaosteidae, together with Liaosteus, Spherosteus, and Yanosteus.[3][4] Peipiaosteidae are extinct relatives of Modern sturgeons and paddlefishes (Acipenseroidei).

See alsoEdit


  1. ^ a b Y. N. Jakovlev. 1986. Acipenseriformes, in Nasekomye v rannemelovykh ekosistemakh zapadnoy Mongolii. The Joint Soviet-Mongolian Palaeontological Expedition 28:178-182
  2. ^ a b Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 364: 560. Archived from the original on July 23, 2011. Retrieved 2009-02-27.
  3. ^ a b Bemis, William E.; Findeis, Eric K.; Grande, Lance (1997). "An overview of Acipenseriformes". Environmental Biology of Fishes. 48: 25–71.
  4. ^ Hilton, Eric J.; Grande, Lance; Jin, Fan (2021). "Redescription of †Yanosteus longidorsalis Jin et al., 1995 (Chondrostei, Acipenseriformes, †Peipiaosteidae) from the Early Cretaceous of China". Journal of Paleontology. 95 (1): 170–183. doi:10.1017/jpa.2020.80.