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  2. Clupeiformes - Wikipedia

    en.wikipedia.org/wiki/Clupeiformes

    Clupeiformes / ˈ k l uː p iː ɪ f ɔːr m iː z / is the order of ray-finned fish that includes the herring family, Clupeidae, and the anchovy family, Engraulidae. The group includes many of the most important forage and food fish. Clupeiformes are physostomes, which means that their gas bladder has a pneumatic duct connecting it to the gut.

  3. Cosmine - Wikipedia

    en.wikipedia.org/wiki/Cosmine

    Cosmine was first described in the Osteolepiform Megalichthys hibberti by Williamson in 1849, in a purely descriptive, pre-Darwinian, non-evolutionary framework. [4] Goodrich [5] expanded on Williamson's descriptions, hypothesizing a transition from a monoodontode scale (like a chondryicthian placoid scale) to a complex polyodontode scale through fusion of discrete units.

  4. Ophidiiformes - Wikipedia

    en.wikipedia.org/wiki/Ophidiiformes

    Ophidiiformes / ɒ ˈ f ɪ d i. ɪ f ɔːr m iː z / is an order of ray-finned fish that includes the cusk-eels (family Ophidiidae), pearlfishes (family Carapidae), viviparous brotulas (family Bythitidae), and others.

  5. Fish scale - Wikipedia

    en.wikipedia.org/wiki/Fish_scale

    Ganoine is an ancient feature of ray-finned fishes, being found for example on the scales of stem group actinopteryigian Cheirolepis. [17] While often considered a synapomorphic character of ray-finned fishes, ganoine or ganoine-like tissues are also found on the extinct acanthodii. [17]

  6. Redfieldiiformes - Wikipedia

    en.wikipedia.org/wiki/Redfieldiiformes

    Redfieldiiformes is an extinct order of ray-finned fish (actinopterygians) which lived from the Early Triassic to Early Jurassic. Redfieldiiforms were fairly typical Triassic fish in overall anatomy. They had a fusiform (streamlined, tuna-like) body shape with thick, ganoine-covered scales.

  7. Lepidotes - Wikipedia

    en.wikipedia.org/wiki/Lepidotes

    Lepidotes (from Greek: λεπιδωτός lepidōtós, 'covered with scales') (previously known as Lepidotus) [5] is an extinct genus of Mesozoic ray-finned fish.It has long been considered a wastebasket taxon, characterised by "general features, such as thick rhomboid scales and, for most of the species, by semi-tritorial or strongly tritorial dentition".

  8. Acipenseriformes - Wikipedia

    en.wikipedia.org/wiki/Acipenseriformes

    Acipenseriformes / æ s ɪ ˈ p ɛ n s ə r ɪ f ɔːr m iː z / is an order of basal [1] ray-finned fishes that includes living and fossil sturgeons and paddlefishes (Acipenseroidei), as well as the extinct families Chondrosteidae and Peipiaosteidae. [2] [3] [4] They are the second earliest diverging group of living ray-finned fish after the ...

  9. Category:Ray-finned fish - Wikipedia

    en.wikipedia.org/wiki/Category:Ray-finned_fish

    This category contains articles about taxa at the order level in the class Actinopterygii, the ray-finned fishes. The ray-finned fishes contain most of the species of fish and these are divided into 46 orders. Most of the fishes known to aquarists and anglers are within this class. **Subcategories are listed below for all 46 orders and examples ...