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Functional morphology, ontogeny and evolution of mantis shrimp‐like predators in the Cambrian
TLDR
The arrangement of the elbow joint supports the view that the great appendage evolved into the chelicera of Chelicerata sensu stricto, as similar joints are found in various ingroup taxa such as Xiphosura, Opiliones or Palpigradi.
Morphology and function in the Cambrian Burgess Shale megacheiran arthropod Leanchoilia superlata and the application of a descriptive matrix
TLDR
Different aspects of the morphology, for example, the morphology of the great appendage and the presence of a basipod with strong median armature on the biramous appendages indicate that L. superlata was an active and agile necto-benthic predator (not a scavenger or deposit feeder as previously interpreted).
A holomorph approach to xiphosuran evolution—a case study on the ontogeny of Euproops
TLDR
A holomorph approach is proposed, i.e., reconstructing ontogenetic sequences for fossil and extant species as a sound basis for a taxonomic, phylogenetic, and evolutionary discussion of Xiphosura.
The implications of a Silurian and other thylacocephalan crustaceans for the functional morphology and systematic affinities of the group
TLDR
While the new features reported here are consistent with a eucrustacean affinity, most previous hypotheses for the position of Thylacocephala within Eucrustacea (as Stomatopoda, Thecostraca or Decapoda) are shown to be unlikely.
Evolution of insect wings and development – new details from Palaeozoic nymphs
TLDR
It is demonstrated that some Carboniferous nymphs – those of Palaeodictyopteroidea – possessed movable wing pads and appear to have been able to perform simple flapping flight, and the reconstructed evolutionary scenario contains gaps and uncertainties.
Autofluorescence imaging, an excellent tool for comparative morphology
TLDR
Autofluorescence imaging is a powerful, easy and fast‐to‐apply tool for morphological studies and provides additional information for which otherwise more complex methods would have to be applied.
Early Crustacean Evolution and the Appearance of Epipodites and Gills
TLDR
The recently discovered Yicaris dianensis from the Lower Cambrian demonstrates not only the presence but also the morphogenesis of three epipodites on all post-maxillulary appendages, and may be a valuable model for understanding the evolutionary origin of epipadites.
“Crustacea”: Comparative Aspects of Larval Development
TLDR
Herein and in the entire treatise, the term “crustacean” refers to any representative of Crustacea sensu lato which is not a hexapod or a myriapod, and this appears to be the most useful one in the current context.
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