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MORPHOLOGY-BASED PHYLOGENETIC ANALYSIS OF THE CLAWED LOBSTERS (FAMILY NEPHROPIDAE AND THE NEW FAMILY CHILENOPHOBERIDAE)

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ABSTRACT The phylogeny of extinct and extant clawed lobsters is interpreted using a morphology-based phylogenetic analysis. Twenty-one genera, representing two clades, are grouped into either the redefined family Nephropidae or the new family Chilenophoberidae. Chilenophoberids, the primitive sister group of nephropids, share a close common ancestry with members of the Erymidae, and arose by the Middle Jurassic. Nephropids arose by the Early Cretaceous. Among clawed lobsters, no one morphological character is generally more reliable than any other as a guide to phylogeny. Homoplasy in aspects of groove pattern, ornamentation, and the appendages is widespread. The ubiquity of homoplasy in lobster evolution argues against the practice of erecting suprageneric taxonomic groups based on a few, intuitively selected characters. Cretaceous lobsters strongly resemble Recent ones, and no long-term, directional evolutionary trends were detected.

10.1163/193724097X00288
/content/journals/10.1163/193724097x00288
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/content/journals/10.1163/193724097x00288
2017-10-24

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