Ostariophysi

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Ostariophysi

a superorder of freshwater TELEOSTS, including the carp and the minnow. The group has several primitive features, including the WEBERIAN OSSICLE.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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The clupeomorph and ostariophysan fishes are grouped together, thus contradicting the results of some recent molecular cladistic analyses placing the Alepocephaloidea inside the Otocephala.
The five extant ostariophysan orders are also covered in the analysis, including all extant gonorynchiform genera: Chanos, Gonorynchus, Phractolaemus, Kneria, Parakneria, Cromeria and Grasseichthys (Gonorynchiformes), Opsariichthys, Barbus, Danio, Cobitis and Catostomus (Cypriniformes), Xenocharax, Distichodus, Citharinus and Brycon (Characiformes), Sternopygus, Gymnotus and Brachyhypopomus (Gymnotiformes) and Diplomystes, Nematogenys, Trichomycterus, Callichthys, Cetopsis, Silurus, Pimelodus, Bagrus and Chrysichthys (Siluriformes).
Biologists and paleontologists synthesize recent research and the current understanding of such aspects as the early ossification and development of the cranium and paired girdles of Chanos chanos, a new teleostean fish from the Early Late Cretaceous (Cenomanian) off southeastern Morocco and its relationships with the ostariophysans, systematics and phylogenetic relationships of cypriniformes, the state of knowledge concerning siluriform higher-level phylogeny, and the mitochondrial phylogeny of the South American electric fish (gymnotiformes) and an alternative hypothesis for the otophysan historical biogeography.
Basal loricarioids (trichomycterids, nematogenyids) share with other catfishes and ostariophysan fishes the plesiomorphic condition for cranial structures and their mechanical linkages.