Walk 'n Jump: Associated Insect Walking and Landing Trace Fossils from the Early Permian of the Southern Alps

Massimo Bernardi*, Lorenzo Marchetti, Mauro Gobbi

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

1 Citation (Scopus)

Abstract

We describe a compound trace fossil Stiaria cf. intermedia C Avolatichnium isp. from the lower Permian of Southern Alps (North Italy) and confidently attribute it to a wingless (apterygote) jumping insect producer belonging to the order Monura (Insecta: Archaeognatha). We discuss the common features linking the ichnogenera Avolatichnium, Rotterodichnium and Tonganoxichnus, and suggest a close affinity for their producers. Grounded on previous studies and on some exceptional features preserved in the described material, we provide a biomechanical model for jumping in Archaeognatha and hypothesize that Paleozoic Archaeognatha performed jumps with high vertical and very low horizontal component and only later acquired the ability to heighten the horizontal component of their jumps, therefore, becoming more efficient in propelling themselves far ahead as extant species do.

Original languageEnglish
Pages (from-to)128-137
Number of pages10
JournalIchnos:an International Journal of Plant and Animal
Volume25
Issue number2-3
Early online date11 Dec 2017
DOIs
Publication statusPublished - 3 Jul 2018

Keywords

  • Archaeognatha
  • Avolatichnium
  • Compound trace fossils
  • Insect behavior
  • Stiaria

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