Possible evidence for intraspecific aggression in a Pliocene crocodile from north Queensland

  title={Possible evidence for intraspecific aggression in a Pliocene crocodile from north Queensland},
  author={Brian S. Mackness and Richard H. Sutton},
  journal={Alcheringa: An Australasian Journal of Palaeontology},
  pages={55 - 62}
  • B. MacknessR. H. Sutton
  • Published 1 January 2000
  • Environmental Science, Geography
  • Alcheringa: An Australasian Journal of Palaeontology
A large, fossilised crocodilian metatarsal has been recovered from the Pliocene Bluff Downs Local Fauna exhibiting proliferative bone growth consistent with an episode of osteoperiostitis, possibly resulting from trauma. The nature and location of this trauma suggests that it may have occurred as a result of intraspecific aggression between rival animals. Three crocodilian genera have been recovered from the Bluff Downs Fauna, Crocodylus, Quinkana and Pallimnarchus. The metatarsal does not… 

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