Osteoglossidae

The family has been regarded as containing two extant subfamilies Arapaiminae and Osteoglossinae, with a total of five living genera,[1] but these are regarded as valid families in Eschmeyer's Catalog of Fishes[2] The extinct Phareodontinae are known from worldwide during the Late Cretaceous and Paleogene; they are generally considered to be crown group osteoglossids that are more closely related to one of the extant osteoglossid subfamilies than the other, though their exact position varies.The traditionally defined wider family includes several extant species from South America, one from Africa, two from Asia, and two from Australia.[5] The earliest known osteoglossid is Cretophareodus from the middle Campanian of the Dinosaur Park Formation, Canada, but a potentially older genus may be Chanopsis from the Albian of the Democratic Republic of the Congo.[6] Although currently restricted to freshwater habitats in the tropics, the group was much more widespread during the Cretaceous and Paleogene, with genera known from North America and Europe, including marine taxa such as Brychaetus.For this reason, it was formerly assumed that extant osteoglossids descend from an ancestor that inhabited the supercontinent of Gondwana during the Mesozoic, which split into different genera following its fragmentation.
Phareodus testis , a famous member of the extinct subfamily Phareodontinae
CampanianPreꞒAlbianScleropages leichardtiosteoglossineQueenslandScientific classificationEukaryotaAnimaliaChordataActinopterygiiOsteoglossiformesBonapartearowanasArapaiminaeOsteoglossinaeEschmeyer's Catalog of FishesLate CretaceousPaleogenecrown groupCretaceousactinopterygianextantone from AfricaAustraliaCretophareodusDinosaur Park FormationChanopsisDemocratic Republic of the CongoNorth AmericaEuropeBrychaetusGreenlandEarly PaleoceneGondwanan distributionMesozoicPhareodus testisOsteoglossumCuvierScleropagesGüntherWoodwardMonopterosOpsithrissopsPhareodusCalifornia Academy of SciencesBibcodeOsteoglossomorphaNeopterygiiTeleosteiCoriopsHarenaichthysJinanichthysParalycopteraXixiaichthysLycopteridaeLycopteraHiodontiformesHiodonJoffrichthysShuleichthysThaumaturusWakinoichthysPantodontidaePantodonArapaimaHeterotisNotopteroideiGymnarchusOstariostomaNotopteridaeChitalaNotopterusPapyrocranusXenomystusMormyridaePetrocephalusMormyrinaeBoulengeromyrusBrevimyrusBrienomyrusCampylomormyrusCryptomyrusCyphomyrusGenyomyrusGnathonemusHeteromormyrusHippopotamyrusHyperopisusIsichthysIvindomyrusMarcuseniusMormyropsMormyrusMyomyrusParamormyropsPollimyrusStomatorhinusWikidataWikispeciesiNaturalistOpen Tree of LifePaleobiology Database