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Figure 1 | EvoDevo

Figure 1

From: Subdivision of arthropod cap-n-collar expression domains is restricted to Mandibulata

Figure 1

Competing hypotheses in arthropod phylogeny. (A) Mandibulata unites the non-chelicerate arthropods in a clade and is the hypothesis most stably recovered in phylogenetic analyses. Multiple terminal icons indicate the non-monophyly of Crustacea. (B) The Atelocerata hypothesis unites hexapods and myriapods to the exclusion of crustaceans. (C) Myriochelata unites the myriapods and chelicerates in a clade. (D) Segmental architecture of Arthropoda. The depiction of Myriapoda corresponds to the millipede bauplan (a second maxilla is present in other myriapod lineages). The anterior-most head segment, or protocerebral segment, is to the left. Yellow circles indicate the anterior tagmata, the chelicerate prosoma and the mandibulate head.

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