Carnivorous mammals from the middle Eocene Washakie Formation, Wyoming, USA, and their diversity trajectory in a post-warming world
Carnivorous mammals from the middle Eocene Washakie Formation, Wyoming, USA, and their diversity trajectory in a post-warming world
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美国怀俄明州始新世中期瓦什基组的食肉哺乳动物及其在变暖后世界中的多样性轨迹
DOI:
10.1017/jpa.2020.74
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发表时间:
2021
影响因子:
1.4
通讯作者:
Flynn, John J.
中科院分区:
文献类型:
--
作者:
Tomiya, Susumu;Zack, Shawn P.;Spaulding, Michelle;Flynn, John J.
The middle Eocene Washakie Formation of Wyoming, USA, provides a rare window, within a single depositional basin, into the faunal transition that followed the early Eocene warming events. Based on extensive examination, we report a minimum of 27 species of carnivorous mammals from this formation, more than doubling the previous taxic count. Included in this revised list are a new species of carnivoraform,Neovulpavus mccarrollin. sp., and up to ten other possibly new taxa. Our cladistic analysis of early Carnivoraformes incorporating new data clarified the array of middle Eocene taxa that are closely related to crown-group Carnivora. These anatomically relatively derived carnivoraforms collectively had an intercontinental distribution in North America and east Asia, exhibiting notable variations in body size and dental adaptation. This time period also saw parallel trends of increase in body size and dental sectoriality in distantly related lineages of carnivores spanning a wide range of body sizes. A new, model-based Bayesian analysis of diversity dynamics accounting for imperfect detection revealed a high probability of substantial loss of carnivore species between the late Bridgerian and early Uintan North American Land Mammal ‘Ages’, coinciding with the disappearance of formerly common mammals such as hyopsodontids and adapiform primates. Concomitant with this decline in carnivore diversity, the Washakie vertebrate fauna underwent significant disintegration, as measured by patterns of coordinated detection of taxa at the locality level. These observations are consistent with a major biomic transition in the region in response to climatically induced opening-up of forested habitats.UUID: http://zoobank.org/9162f1a6-a12c-4d55-ba1d-dc66e8cda261
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DOI:
10.5962/p.330482
发表时间:
1984
期刊:
Annals of the Carnegie Museum
影响因子:
--
作者:
R. Stucky
通讯作者:
R. Stucky
DOI:
10.5962/bhl.title.61805
发表时间:
2016
期刊:
Annals of the Carnegie Museum
影响因子:
--
作者:
J. Leidy
通讯作者:
J. Leidy
DOI:
10.5962/p.330511
发表时间:
1975
期刊:
Annals of the Carnegie Museum
影响因子:
--
作者:
R. West;M. Dawson
通讯作者:
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DOI:
10.1086/270580
发表时间:
1870
期刊:
The American Naturalist
影响因子:
--
作者:
J. Leidy;F. Hayden
通讯作者:
F. Hayden
影响因子:
1.4
作者:
R. Stucky
通讯作者:
R. Stucky