Naturwissenschaften

, Volume 97, Issue 9, pp 855–859

Reconstructing the anatomy of the 42-million-year-old fossil †Mengeatertiaria (Insecta, Strepsiptera)

Authors

    • Entomology GroupInstitut für Spezielle Zoologie und Evolutionsbiologie mit Phyletischem Museum, FSU Jena
  • Benjamin Wipfler
    • Entomology GroupInstitut für Spezielle Zoologie und Evolutionsbiologie mit Phyletischem Museum, FSU Jena
  • David Grimaldi
    • American Museum of Natural History
  • Felix Beckmann
    • GKSS-Research Centre
  • Rolf G. Beutel
    • Entomology GroupInstitut für Spezielle Zoologie und Evolutionsbiologie mit Phyletischem Museum, FSU Jena
Original Paper

DOI: 10.1007/s00114-010-0703-x

Cite this article as:
Pohl, H., Wipfler, B., Grimaldi, D. et al. Naturwissenschaften (2010) 97: 855. doi:10.1007/s00114-010-0703-x

Abstract

Fossilization in amber is unique in preserving specimens with microscopic fidelity; however, arthropod inclusions are rarely examined beyond the exoskeleton as this requires destructive sampling when traditional techniques are used. We report the first complete, digital 3D, non-destructive reconstruction of the anatomy of an insect fossil, a specimen of †Mengea tertiaria embedded in a 42-Ma Baltic amber. This was made possible using Synchrotron μ-CT. The species belongs to the stem group of the phylogenetically enigmatic and extremely specialized Strepsiptera. Most internal structures of the fossil are preserved, but small parts of the lumen had decayed due to incomplete infiltration of the resin. Data on internal organs provided additional information for resolving phylogenetic relationships. A sister group relationship between †Mengea and all extant lineages of the group was confirmed with characters previously not accessible. The newly gained information also yielded some insights in the biology of †Mengea and the early evolutionary history of Strepsiptera. The technique has a tremendous potential for a more accurate interpretation of diverse fossil arthropods preserved in ambers from 130 Ma to the present.

Keywords

AmberInternal anatomySRμ-CT3-dimensional reconstructionArthropodaStrepsiptera

Copyright information

© Springer-Verlag 2010