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Healed bite marks on a Cretaceous ichthyosaur
University of Adelaide. (Benjamin Kear - Vertebrate Palaeontology Research Group)
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Palaeobiology.
2011 (English)In: Acta Palaeontologica Polonica, ISSN 0567-7920, E-ISSN 1732-2421, Vol. 56, no 4, 859-863 p.Article in journal (Refereed) Published
Abstract [en]

Reports of pathological ichthyosaur fossils are very rare. The identification of a series of healed cuts and an associated gouge on the lower jaw of an adult (ca 5 metres body length) Platypterygius specimen from the Lower Cretaceous of Australia is therefore significant, because it constitutes direct evidence of bite force trauma sustained during the life of the animal. Based on the close spacing and non-lethal facial positioning of the wounds, they were probably not inflicted by a predator. Alternative explanations might include an accidental aggressive encounter with another large vertebrate, or perhaps an intraspecific interaction such as during courtship or combat over food, mates or territory.

Place, publisher, year, edition, pages
2011. Vol. 56, no 4, 859-863 p.
National Category
Other Earth and Related Environmental Sciences
Research subject
Earth Science with specialization in Historical Geology and Palaeontology
Identifiers
URN: urn:nbn:se:uu:diva-166586DOI: 10.4202/app.2010.0117ISI: 000299303900015OAI: oai:DiVA.org:uu-166586DiVA: diva2:476897
Available from: 2012-01-12 Created: 2012-01-12 Last updated: 2017-12-08Bibliographically approved

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