The limb staining suggests shared ancestry of the onychophoran and arthropod limbs. |
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Each leg bears two retractable claws: the name onychophoran is derived from the Greek for carrier of claws. |
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The two onychophoran taxa plot centrally, as do the two Marellomorphs. |
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To make the onychophoran connection, Ramskold and Hou have stretched the boundaries of the phylum. |
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