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3D reconstructions of carboniferous insect nymphs
Rather interesting pictures.
Tomographic Reconstruction of Neopterous Carboniferous Insect Nymphs
Two new polyneopteran insect nymphs from the Montceau-les-Mines Lagersttte
of France are presented. Both are preserved in three dimensions, and are
imaged with the aid of X-ray micro-tomography, allowing their morphology
to be recovered in unprecedented detail. OneAnebos phrixos gen. et sp.
nov.is of uncertain affinities, and preserves portions of the antennae and
eyes, coupled with a heavily spined habitus. The other is a roachoid with
long antennae and chewing mouthparts very similar in form to the most
generalized mandibulate mouthparts of extant orthopteroid insects.
Computer reconstructions reveal limbs in both specimens, allowing
identification of the segments and annulation in the tarsus, while poorly
developed thoracic wing pads suggest both are young instars. This work
describes the morphologically best-known Palaeozoic insect nymphs,
allowing a better understanding of the juveniles palaeobiology and
palaeoecology. We also consider the validity of evidence from Palaeozoic
juvenile insects in wing origin theories. The study of juvenile Palaeozoic
insects is currently a neglected field, yet these fossils provide direct
evidence on the evolution of insect development. It is hoped this study
will stimulate a renewed interest in such work.