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Fossil isopods associated with a fish skeleton from the lower cretaceous of Queensland, Australia: Direct evidence of a scavenging lifestyle in mesozoic cymothoida
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Palaeobiology.
2011 (English)In: Palaeontology, ISSN 0031-0239, E-ISSN 1475-4983, Vol. 54, no 5, 1053-1068 p.Article in journal (Refereed) Published
Abstract [en]

A dense assemblage of fossil isopod crustaceans (Brunnaega tomhurleyi Wilson, sp. nov.) from the Lower Cretaceous (Albian) Toolebuc Formation of Queensland, Australia, has been found within the carcass of a large actinopterygian fish, Pachyrhizodus marathonensis (Etheridge). Preservation of fine anatomical details supports referral to the genus Brunnaega Polz, which is herein reassigned to the family Cirolanidae. Furthermore, placement of this taxon within the cirolanid subfamily Conilerinae Kensley and Schotte is significant because the group includes modern species that are well known as voracious scavengers. This isopod-fish association represents the oldest unequivocal evidence of scavenging by Mesozoic cymothoidean isopods on a large vertebrate carcass.

Place, publisher, year, edition, pages
2011. Vol. 54, no 5, 1053-1068 p.
Keyword [en]
Isopoda, Cirolanidae, fossils, scavengers, Brunnaega, Cretaceous
National Category
Earth and Related Environmental Sciences
URN: urn:nbn:se:uu:diva-160158DOI: 10.1111/j.1475-4983.2011.01095.xISI: 000295094100006OAI: oai:DiVA.org:uu-160158DiVA: diva2:448475
Available from: 2011-10-17 Created: 2011-10-17 Last updated: 2011-10-17Bibliographically approved

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