File:Time-calibrated phylogenetic relationships within Ceratopsidae.jpg

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描述	Time-calibrated phylogenetic relationships of Nasutoceratops titusi, n. gen et. sp. within Ceratopsidae (a). Single most parsimonious tree (tree length = 140, CI = 0.721, RI = 0.852) of an analysis of 97 characters. Species durations (bars) based on maximum and minimum stratigraphic occurrences correlated where possible to radiometric dates. Ovals in the ranges are either centroids or are the most likely age of taxa based on stratigraphic placement. Taxa listed in red represent Asian occurrences, those in dark blue represent northern Laramidia and those in light blue represent southern Laramidia. Stratigraphic data recorrelated and recalibrated from Sampson & Loewen [26] and Roberts et al. [17]. A further explanation for stratigraphic placement is presented in the electronic supplementary material. Occurrences of taxa presented in phylogeny placed on a Late Cretaceous palaeogeographic map (b) modified after Blakey [27].
日期	2013年
来源	http://rspb.royalsocietypublishing.org/content/280/1766/20131186
作者	S.D. Sampson; E.K. Lund; M.A. Loewen; A.A. Farke; K.E. Clayton

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当前	2020年5月24日 (日) 15:43		1,273 × 1,280（245 KB）	FunkMonk	{{Information \|description=Time-calibrated phylogenetic relationships of Nasutoceratops titusi, n. gen et. sp. within Ceratopsidae (a). Single most parsimonious tree (tree length = 140, CI = 0.721, RI = 0.852) of an analysis of 97 characters. Species durations (bars) based on maximum and minimum stratigraphic occurrences correlated where possible to radiometric dates. Ovals in the ranges are either centroids or are the most likely age of taxa based on stratigraphic placement. Taxa listed in r...

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