DOI: 10.1016/j.palaeo.2012.11.008
论文题名: Reconstructing the diversity of early terrestrial herbivorous tetrapods
作者: Pearson M.R. ; Benson R.B.J. ; Upchurch P. ; Fröbisch J. ; Kammerer C.F.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2013
卷: 372 起始页码: 42
结束页码: 49
语种: 英语
英文关键词: Diversity
; Herbivore
; Permian
; Sampling
; Tetrapod
英文摘要: Terrestrial herbivorous tetrapods first appear in the fossil record during the Late Carboniferous (306.5. Ma). The diversification of herbivores is a key aspect of the transition to the modern trophic structure of terrestrial vertebrate ecosystems, because it allowed tetrapods to exploit terrestrial (i.e. non-aquatic) primary productivity. However, the palaeodiversity dynamics of the earliest terrestrial vertebrate herbivores have received relatively little attention, apart from a few studies that focus on specific clades. A new dataset containing 287 species occurrences of herbivorous tetrapods including the major Palaeozoic and Early Triassic clades Anomodontia, Archosauromorpha, Bolosauridae, Captorhinidae, Caseidae, Cynodontia, Dinocephalia, Diadectomorpha, Edaphosauridae, Pareiasauria, Poposauroidea, Procolophonoidea, Rhynchosauria, Silesauridae and Therocephalia is used to analyse palaeodiversity from the Late Carboniferous to the Middle Triassic (~. 306.5-~. 236. Ma), taking into account the effects of potential sampling biases by using the number of tetrapod-bearing formations as a proxy. The results support a gradual increase in taxic diversity from the Late Carboniferous to the Wordian, followed by a dip in diversity during the Guadalupian (Middle Permian), and an increase to a peak in the Late Permian at the Wuchiapingian/Changhsingian boundary. Herbivorous tetrapods were strongly affected by the end-Permian mass extinction with both the herbivorous Pareiasauria and Captorhinidae becoming extinct and the observed number of anomodont species decreasing by up to 80%. The drop in observed diversity at the end Permian is dampened slightly because of the radiation of new herbivorous forms during the Early Triassic. A strong biological signal is apparent even after correcting for sampling. © 2012 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69834
Appears in Collections: 过去全球变化的重建
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作者单位: University College London, Department of Earth Sciences, United Kingdom; University of Cambridge, Department of Earth Sciences, United Kingdom; Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitatsforschung an der Humboldt-Universitat zu, Berlin, Germany
Recommended Citation:
Pearson M.R.,Benson R.B.J.,Upchurch P.,et al. Reconstructing the diversity of early terrestrial herbivorous tetrapods[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2013-01-01,372