New information on scavenging and selective feeding behaviour of tyrannosaurids

David W. E. Hone*, Mahito Watabe

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

25 Citations (Scopus)

Abstract

Feeding traces for carnivorous theropod dinosaurs are typically rare but can provide important evidence of prey choice and mode of feeding. Here we report a humerus of the hadrosaurine Saurolophus which was heavily damaged from feeding attributed to the giant tyrannosaurine Tarbosaurus. The bone shows multiple bites made in three distinctive styles termed "punctures", "drag marks" and "bite-and-drag marks". The distribution of these bites suggest that the animal was actively selecting which biting style to use based on which part of the bone was being engaged. The lack of damage to the rest of the otherwise complete and articulated hadrosaur strongly implies that this was a scavenging event, the first reported for a tyrannosaurid, and not feeding at a kill site.

Original languageEnglish
Pages (from-to)627-634
Number of pages8
JournalActa Palaeontologica Polonica
Volume55
Issue number4
DOIs
Publication statusPublished - Dec 2010

Keywords

  • Dinosauria
  • Theropoda
  • Tarbosaurus
  • palaeoecology
  • carnivory
  • predation
  • scavenging
  • BONE UTILIZATION
  • THEROPOD
  • DINOSAURS
  • REX

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