Arnason U, Gullberg A
Department of Genetics, University of Lund, Sweden.
Nature. 1994 Feb 24;367(6465):726-8. doi: 10.1038/367726a0.
A recent revision of whale phylogeny suggested that the sperm whale was more closely related to rorquals than to other toothed whales. This made the suborder Odontoceti (toothed whales) paraphyletic, and implied that the latest common ancestor of rorquals and sperm whales may have lived only 10-13 million years ago. This is at variance with palaeontological evidence for the greater antiquity for both mysticetes (baleen whales) and sperm whales, so the Mysticeti, as well as the Odontoceti, must also be paraphyletic if the dates implied in ref. 1 were correct. Here we present a more comprehensive phylogenetic analysis that demonstrates the monophyly of mysticetes and identifies no particular affinity between the sperm whales and rorquals.
最近对鲸类系统发育的修订表明，抹香鲸与须鲸的亲缘关系比与其他齿鲸的亲缘关系更近。这使得齿鲸亚目（齿鲸）成为并系群，并暗示须鲸和抹香鲸的最新共同祖先可能仅生活在1000万至1300万年前。这与古生物学证据不符，古生物学证据表明须鲸（须鲸）和抹香鲸的历史更为古老，因此，如果参考文献1中暗示的日期正确，须鲸亚目以及齿鲸亚目也必定是并系群。在这里，我们进行了更全面的系统发育分析，证明了须鲸的单系性，并且未发现抹香鲸与须鲸之间存在特殊的亲缘关系。
