File:Atlantic_sturgeon_flipped.jpg · Wikimedia Commons · See Wikimedia Commons
Acipenseriformes
Sign in to savethumb|Fossil of the Chondrosteidae|chondrosteid Strongylosteus hindenburgi, Tübingen thumb|Fossil of the Peipiaosteidae|peipiaosteid Yanosteus longidorsalis, [[MHNT]] thumb|The living Polyodontidae|polyodontid Polyodon spathula (American paddlefish) thumb|The living Acipenseridae|acipenserid Acipenser ruthenus (sterlet) thumb|The living Acipenseridae|acipenserid [[Pseudoscaphirhynchus kaufmanni (false shovelnose sturgeon)]]
Acipenseriformes is an order of fish that includes both extinct groups (like Chondrosteidae and Peipiaosteidae) and living families such as sturgeons and paddlefish. These fish are scientifically important for understanding the evolutionary history of ray-finned fishes, and some living species like the sterlet and American paddlefish remain significant in their ecosystems today.
AI-generated from the Wikipedia summary — may contain errors.
Species
acipenseriformi
Acipenseriformes
ORDER
- KingdomAnimalia
- PhylumChordata
- ClassChondrostei
- OrderAcipenseriformes
via GBIF
Wikidata facts
- Image
- Acipenser oxyrhynchus.jpg
Show 3 more facts
- Commons category
- Acipenseriformes
- taxon name
- Acipenseriformes
- taxon common name
- størfisker
Sources (2)
via Wikidata · CC0
~7 min read
Article
7 sectionsContents
- Description
- Evolutionary history
- Classification
- Conservation
- Hybridization
- References
- External links
thumb|Fossil of the Chondrosteidae|chondrosteid Strongylosteus hindenburgi, Tübingen thumb|Fossil of the Peipiaosteidae|peipiaosteid Yanosteus longidorsalis, [[MHNT]] thumb|The living Polyodontidae|polyodontid Polyodon spathula (American paddlefish) thumb|The living Acipenseridae|acipenserid Acipenser ruthenus (sterlet) thumb|The living Acipenseridae|acipenserid [[Pseudoscaphirhynchus kaufmanni (false shovelnose sturgeon)]]
Acipenseriformes is an order of basal ray-finned fishes that includes living and fossil sturgeons and paddlefishes (Acipenseroidei), as well as the extinct families Chondrosteidae and Peipiaosteidae. They are the second earliest diverging group of living ray-finned fish after the bichirs. Despite being early diverging, they are highly derived (modified from their ancestors), having only weakly ossified skeletons that are mostly made of cartilage, and in modern representatives highly modified skulls.