The thoracic morphology of Archostemata and the relationships of the extant suborders of Coleoptera (Hexapoda)

@article{Friedrich2009TheTM,
  title={The thoracic morphology of Archostemata and the relationships of the extant suborders of Coleoptera (Hexapoda)},
  author={Frank Friedrich and Brian D. Farrell and Rolf G. Beutel},
  journal={Cladistics},
  year={2009},
  volume={25}
}
Thoracic structures of Tetraphalerus bruchi are described in detail. The results were compared with features found in other representatives of Archostemata and other coleopteran suborders. Differences between thoracic structures of Tetraphalerus and members of other archostematan subgroups are discussed. External and internal characters of larval and adult representatives of 37 genera of the coleopteran suborders are outlined, coded and analysed cladistically, with four groups of Neuropterida… 
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TLDR
The phylogenetic results tentatively suggest a placement of Archostemata as sistertaxon of the other three beetle suborders, and Micromalthidae are placed as sistergroup of Crowsoniellidae in analyses of larval and adult morphological characters.
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Several potential groundplan features of the larval head of Trichoptera were reconstructed and topics were discussed by summarizing the main hypotheses present in the literature and a critical inclusion of new findings.
The thorax of the cave cricket Troglophilus neglectus: anatomical adaptations in an ancient wingless insect lineage (Orthoptera: Rhaphidophoridae)
TLDR
The first detailed investigation and description of the thoracic skeletal and muscular anatomy of the East Mediterranean cave cricket Troglophilus neglectus is presented and a closer relationship of Rhaphidophoridae to Tettigoniidae rather than to Gryllidae is favored.
Early Evolution of Beetles of the Suborder Polyphaga (Insecta: Coleoptera) at the Permian–Triassic Boundary
TLDR
Basal branching is shown in Polyphaga, which produced a wide spectrum of forms, no less than in other infraorder-level taxa of Holometabola, and helped them to survive three out of the five mass extinctions of Phanerozoic.
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