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DOI: 10.1371/journal.pone.0112705
论文题名:
A New Species of the Basal “Kangaroo” Balbaroo and a Re-Evaluation of Stem Macropodiform Interrelationships
作者: Karen H. Black; Kenny J. Travouillon; Wendy Den Boer; Benjamin P. Kear; Bernard N. Cooke; Michael Archer
刊名: PLOS ONE
ISSN: 1932-6203
出版年: 2014
发表日期: 2014-11-19
卷: 9, 期:11
语种: 英语
英文关键词: Maxilla ; Dentition ; Molars ; Teeth ; Skull ; Mastoid process ; Miocene epoch ; Phylogenetic analysis
英文摘要: Exceptionally well-preserved skulls and postcranial elements of a new species of the plesiomorphic stem macropodiform Balbaroo have been recovered from middle Miocene freshwater limestone deposits in the Riversleigh World Heritage Area of northwestern Queensland, Australia. This constitutes the richest intraspecific sample for any currently known basal “kangaroo”, and, along with additional material referred to Balbaroo fangaroo, provides new insights into structural variability within the most prolific archaic macropodiform clade – Balbaridae. Qualitative and metric evaluations of taxonomic boundaries demonstrate that the previously distinct species Nambaroo bullockensis is a junior synonym of B. camfieldensis. Furthermore, coupled Maximum Parsimony and Bayesian phylogenetic analyses reveal that our new Balbaroo remains represent the most derived member of the Balbaroo lineage, and are closely related to the middle Miocene B. camfieldensis, which like most named balbarid species is identifiable only from isolated jaws. The postcranial elements of Balbaroo concur with earlier finds of the stratigraphically oldest balbarid skeleton, Nambaroo gillespieae, and suggest that quadrupedal progression was a primary gait mode as opposed to bipedal saltation. All Balbaroo spp. have low-crowned bilophodont molars, which are typical for browsing herbivores inhabiting the densely forested environments envisaged for middle Miocene northeastern Australia.
URL: http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0112705&type=printable
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/19197
Appears in Collections:过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响

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作者单位: School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, Australia;School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, Australia;School of Earth Sciences, University of Queensland, St Lucia, Australia;Palaeobiology Programme, Department of Earth Sciences, Uppsala University, Uppsala, Sweden;Palaeobiology Programme, Department of Earth Sciences, Uppsala University, Uppsala, Sweden;Queensland Museum, South Brisbane, Australia;School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, Australia

Recommended Citation:
Karen H. Black,Kenny J. Travouillon,Wendy Den Boer,et al. A New Species of the Basal “Kangaroo” Balbaroo and a Re-Evaluation of Stem Macropodiform Interrelationships[J]. PLOS ONE,2014-01-01,9(11)
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