Artigo Revisado por pares

Phylogenetic relationships of the Eocene percomorph fishes † Priscacara and † Mioplosus

2010; Taylor & Francis; Volume: 30; Issue: 4 Linguagem: Inglês

10.1080/02724634.2010.483534

ISSN

1937-2809

Autores

John A. Whitlock,

Tópico(s)

Fish Ecology and Management Studies

Resumo

ABSTRACT The early Eocene great lakes of the Green River system preserved a rich fauna, allowing detailed study of the paleoecology of the area. Two genera, †Priscacara and †Mioplosus, are interesting because they are among the earliest well-known representatives of Percoidei sensu lato, and so offer a chance to explore the evolution of the North American fish fauna. A phylogenetic analysis including †Priscacara, †Mioplosus, and representatives of some ‘basal’ percoid families suggests that †Priscacara is a member of Moronidae, and that †Mioplosus has affinities with Lateolabrax, Siniperca, and Lates. †Priscacara is recovered as paraphyletic relative to the rest of Moronidae, primarily on the basis of meristic characters; in the absence of more robust evidence, both †P. serrata and †P. liops are retained within †Priscacara. The phylogenetic position of †Priscacara suggests a trans-Atlantic connection, because Moronidae contain genera from eastern North America and Europe. †Mioplosus is suggestive of an Asian link to the Eocene Green River system, due to its relationship with the Western Pacific Lateolabrax, the Asian Siniperca, and the African/Asian Lates. ACKNOWLEDGMENTS G. Smith (University of Michigan) provided comments and guidance throughout the completion of this project. D. Nelson (University of Michigan), L. Grande (Field Museum, Chicago), J. Williams (United States National Museum), and J. Sparks (American Museum of Natural History) provided access to specimens and collections. J. Wilson, M. D'Emic, and T. Ikejiri provided comments on earlier drafts of the manuscript. T. Grande and four anonymous reviewers improved subsequent versions.

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