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Teleocephala
Teleocephala is a supercohort of vertebrates, it is the grouping which contains the "crown group" of the Teleostei, the bony fishes. The name was coined by Mario de Pinna in his 1996 book ''Interrelationships of Fishes'' and the clade was given the rank of supercohort by Edward O. Wiley and G. David Johnson in 2010. Some authorities treat Teleocephala and Teleosteomorpha as synonymous, however, this is only applicable when treating extant taxa and that the treatment of these taxa in the 5th edition of ''Fishes of the World ''Fishes of the World'' is a standard reference for the systematics of fishes. It was first written in 1976 by the American ichthyologist Joseph S. Nelson (1937–2011). Now in its fifth edition (2016), the work is a comprehensive overview of t ...'' is somewhat confusing as de Pinna's original Teleocephala is actually a combination of three taxonomical concepts. References {{Taxonbar, from=Q2401823 Ray-finned fish taxa Taxa described in 1996 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teleosteomorpha
Teleosteomorpha is an infraclass of ray-finned fishes containing all teleost fish and their closest extinct relatives. Also in this group are two diverse Mesozoic fish orders, the Aspidorhynchiformes and the Pachycormiformes. Several other non-teleostomorph teleosteans existed throughout the Mesozoic, although not as dominant as the two main clades in the group. Shared morphological features of this group include a autosphenotic bone lacking a dermal component, the lack of a canal bearing part of the antorbital bone, the lack of vertebral centra fused into the occipital condyle in adult individuals, and each hypural (caudal fin support) being articulated with caudal rays. The oldest known teleosteomorph is '' Prohalecites'' from the Triassic of Italy. The last surviving non-teleostean teleosteomorph was '' Belonostomus'', which survived into the Late Paleocene. Taxonomy Cladogram of Teleosteomorpha after Sferco et al. 2021: The cladogram below is simplified after a phylogen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ray-finned Fish Taxa
Actinopterygii (; ), members of which are known as ray-finned fish or actinopterygians, is a class (biology), class of Osteichthyes, bony fish that comprise over 50% of living vertebrate species. They are so called because of their lightly built fish fin, fins made of webbings of skin supported by radially extended thin bony spine (zoology), spines called ''lepidotrichia'', as opposed to the bulkier, fleshy lobed fins of the sister taxon, sister clade Sarcopterygii (lobe-finned fish). Resembling folding fans, the actinopterygian fins can easily change shape and wetted area, providing superior thrust-to-weight ratios per movement compared to sarcopterygian and chondrichthyian fins. The fin rays attach directly to the proximal or basal skeletal elements, the radials, which represent the articulation (anatomy), articulation between these fins and the internal skeleton (e.g., pelvic and pectoral girdles). The vast majority of actinopterygians are teleosts. By species count, they domi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
