DOI: 10.1016/j.palaeo.2014.12.014
论文题名: First report of bird tracks (Aquatilavipes) from the Cedar Mountain Formation (Lower Cretaceous), eastern Utah
作者: Lockley M.G. ; Buckley L.G. ; Foster J.R. ; Kirkland J.I. ; Deblieux D.D.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2015
卷: 420 起始页码: 150
结束页码: 162
语种: 英语
英文关键词: Birds
; Cretaceous
; Dinosaurs
; Footprints
; Utah
英文摘要: More than 130 footprints representing ~. 43 trackways of birds (avian theropods) and two non-avian theropods occur as seven separate assemblages on loose blocks recovered from the Poison Strip Member of the Cedar Mountain Formation, near the Stikes Quarry locality in eastern Utah. Six of assemblages, four with bird tracks and two with small non avian theropod tracks, are inferred to originate from the same stratigraphic horizon, and can therefore be considered part of the same ichnofauna. The seventh assemblage comes from a different horizon a few meters above that yielding the other six assemblages. The bird tracks are all attributed to the ichnogenus Aquatilavipes, a track type morphologically similar to those of modern shorebirds. The ichnogenus is also known from broadly coeval ichnofaunas from South Dakota and Canada, and the identification is confirmed by detailed comparative analysis of available Aquatilavipes samples using bivariate and multivariate analyses. This is the first definitive report of bird tracks from the Cedar Mountain Formation and the first evidence of birds from this otherwise richly fossiliferous unit. The ichnofauna is therefore quite unique in comparison with others from this same formation. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69039
Appears in Collections: 过去全球变化的重建
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作者单位: Dinosaur Trackers Research Group, University of Colorado at DenverCO, United States; Peace Region Palaeontology Research Centre, P.O. Box 1540, Tumbler Ridge, BC, Canada; Museum of Moab, 118 East Center St., Moab, UT, United States; Utah Geological Survey, P.O. Box 146100, Salt Lake City, UT, United States
Recommended Citation:
Lockley M.G.,Buckley L.G.,Foster J.R.,et al. First report of bird tracks (Aquatilavipes) from the Cedar Mountain Formation (Lower Cretaceous), eastern Utah[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2015-01-01,420