Phylogenetic position of Diania challenged

Ross C P Mounce, Matthew A Wills

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Abstract

Liu et al.1 describe a new and remarkable fossil, Diania cactiformis. This animal apparently combined the soft trunk of lobopodians (a group including the extant velvet worms in addition to many Palaeozoic genera) with the jointed limbs that typify arthropods. They go on to promote Diania as the immediate sister group to the arthropods, and conjecture that sclerotized and jointed limbs may therefore have evolved before articulated trunk tergites in the immediate arthropod stem. The data published by Liu et al.1 do not un-ambiguously support these conclusions; rather, we believe that Diania probably belongs within an unresolved clade or paraphyletic grade of lobopodians.
LanguageEnglish
PagesE1-E4
Number of pages4
JournalNature
Volume476
Issue number7359
Early online date9 Aug 2011
DOIs
StatusPublished - 11 Aug 2011

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Arthropods
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Phylogenetic position of Diania challenged. / Mounce, Ross C P; Wills, Matthew A.

In: Nature, Vol. 476, No. 7359, 11.08.2011, p. E1-E4.

Research output: Contribution to journalArticle

Mounce, Ross C P ; Wills, Matthew A. / Phylogenetic position of Diania challenged. In: Nature. 2011 ; Vol. 476, No. 7359. pp. E1-E4.
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