Phylogeny of the Trachichthyiformes (Teleostei: Percomorpha)
The osteology and soft anatomy of many genera of fossil and living fishes considered to be in the order Beryciformes were studied in a phylogenetic analysis of acanthomorph fishes. The result of this analysis is that the beryciforms, as they are presently accepted, represent a non-monophyletic group. The “beryciform” suborders Polymixioidei and Dinopterygoidei are actually basal acanthomorph lineages. The remaining “beryciforms,” generally those put in the suborders Berycoidei and Stephanoberycoidei, are basal percomorphs. Of those, the Holocentridae are more closely related to the Perciformes, Scorpaeniformes and Zeiformes, rather than to the other beryciforms, and no unequivocal features have been found to unite the Berycidae to the rest of the so called berycoid and stephanoberycoid beryciforms. The residual berycoid and stephanoberycoid beryciforms, minus the Holocentridae and Berycidae, are monophyletic based on a number of characters that are found in Cretaceous fossils and all or most of the recent taxa. The Cretaceous fossils arrange in a series of three sister groups outside the clade of recent taxa. This clade of recent taxa has been called the Trachichthyiformes and is here recognized to consist of at least 13 families of fishes, which are: the Diretmidae, Anoplogastridae, Anomalopidae, Monocentridae, Trachichthyidae, Melamphaidae, Gibberichthyidae, Stephanoberycidae, Hispidobcrycidae, Rondeletiidae, Barbourisiidae, Megalomycteridae, and Cetomimidae. Characters that support the monophyly of each family are briefly described.
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Document Type: Research Article
Publication date: 01 January 1993
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