Classification of the tremendous diversity of ray-finned fishes (Actinopterygii) began with the designation of taxonomic groups on the basis of morphological similarity. Starting in the late 1960s morphological phylogenetics became the basis for the classification of Actinopterygii but failed to resolve many relationships, particularly among lineages within the hyperdiverse Percomorpha. The introduction of molecular phylogenetics led to a dramatic reconfiguration of actinopterygian phylogeny. Refined phylogenetic resolution afforded by molecular studies revealed an uneven diversity among actinopterygian lineages, resulting in a proliferation of redundant group names in Linnean-ranked classifications. Here we provide an unranked phylogenetic classification for actinopterygian fishes based on a summary phylogeny of 830 lineages of ray-finned fishes that includes all currently recognized actinopterygian taxonomic families and 287 fossil taxa. We provide phylogenetic definitions for 90 clade names and review seven previously defined names. For each of the 97 clade names, we review the etymology of the clade name, clade species diversity and constituent lineages, clade diagnostic morphological apomorphies, review synonyms, and provide a discussion of the clade's nomenclatural and systematic history. The new classification is free of redundant group names and includes only one new name among the 97 clade names we review and describe, yielding a comprehensive classification that is based explicitly on the phylogeny of ray-finned fishes that has emerged in the 21st century and rests on the foundation of the previous 200 years of research on the systematics of ray-finned fishes.

Thomas J. Near

Christine E. Thacker

Bulletin of the Peabody Museum of Natural History

皮博迪自然历史博物馆公报发布基于耶鲁皮博迪自然历史博物馆策展部门收藏的标本、文物和相关材料的原创研究。该公告每年出版两次，分别在 4 月和 10 月。

The Bulletin of the Peabody Museum of Natural History is a publication that features original research based on specimens, artifacts, and related materials from the curatorial department of the Peabody Museum of Natural History at Yale University. This bulletin is published biannually, in April and October.

《Bulletin of the Peabody Museum of Natural History》是皮博迪自然历史博物馆发布的公报，主要刊登基于耶鲁大学皮博迪自然历史博物馆策展部门收藏的标本、文物及相关材料的原创研究。该公报每年出版两次，分别在4月和10月。

Category	Quartile
哲学	4
哲学, 生物多样性保护	4
哲学, 生态学	4

Phylogenetic Classification of Living and Fossil Ray-Finned Fishes (Actinopterygii)

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