Reinterpretation of an alleged marine hexapod stem-group representative [An article from: Organisms Diversity & Evolution]

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Description:
The appendages of the recently described lower Devonian arthropod Devonohexapodus, originally assigned to the stem group of Hexapoda, probably have been misinterpreted. There is no convincing evidence for the evolutionary loss of the first post-antennal pair of appendages and the post-mortem loss of another two pairs of anterior appendages. Three pairs of particularly long appendages in the anterior body portion possibly are not homologous to the thoracic legs of insects. The fossil does not belong in the stemgroup of Hexapoda.