Acipenseriformes /æsɪˈpɛnsərɪˈfɔːrmz/ is an order of basal[2] ray-finned fishes that includes the sturgeons and paddlefishes, as well as some extinct families.[3]

Temporal range: Early Triassic – Recent[1]
Atlantic sturgeon, Acipenser oxyrinchus oxyrinchus
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Subclass: Chondrostei
Order: Acipenseriformes
L. S. Berg, 1940
Yanosteus longidorsalis MHNT

Notable characteristics of Acipenseriformes include:


Taxonomy based on the work of Mikko Haaramo,[4] Neslon, Grande and Wilson 2016[5] and van der Laan 2016.[6]


A study published in 2020 reported a successful hybridization between a Russian sturgeon (Acipenser gueldenstaedtii) and an American paddlefish (Polyodon spathula), indicating that the two species can breed with one another despite their lineages having been separated for hundreds of millions of years. This has marked the first successful hybridization between members of Acipenseridae and Polyodontidae.[7]

External linksEdit


  1. ^ Wiley, Edward G. (1998). Paxton, J. R.; Eschmeyer, W. N. (eds.). Encyclopedia of Fishes. San Diego: Academic Press. pp. 76–79. ISBN 0-12-547665-5.
  2. ^ Venkatesh, B. (December 2003). "Evolution and diversity of fish genomes". Current Opinion in Genetics & Development. 13 (6): 588. doi:10.1016/j.gde.2003.09.001.
  3. ^ Froese, Rainer, and Daniel Pauly, eds. (2006). "Acipenseriformes" in FishBase. 05 2006 version.
  4. ^ Haaramo, Mikko (2007). "Acipenseriformes – sturgeons and paddlefishes". Mikko's Phylogeny Archive. Retrieved 30 December 2016.
  5. ^ Nelson, Joseph S.; Grande, Terry C.; Wilson, Mark V. H. (2016). Fishes of the World (5th ed.). John Wiley & Sons. ISBN 9781118342336.
  6. ^ van der Laan, Richard (2016). "Family-group names of fossil fishes". Cite journal requires |journal= (help)
  7. ^ Káldy, Jenő; Mozsár, Attila; Fazekas, Gyöngyvér; Farkas, Móni; Fazekas, Dorottya Lilla; Fazekas, Georgina Lea; Goda, Katalin; Gyöngy, Zsuzsanna; Kovács, Balázs; Semmens, Kenneth; Bercsényi, Miklós (July 2020). "Hybridization of Russian Sturgeon (Acipenser gueldenstaedtii, Brandt and Ratzeberg, 1833) and American Paddlefish (Polyodon spathula, Walbaum 1792) and Evaluation of Their Progeny". Genes. 11 (7): 753. doi:10.3390/genes11070753.