Review of John Storer, Mammals of the Swift Current Creek Local Fauna (Eocene: Uintan, Saskatchewan)

Review of John Storer, Mammals of the Swift Current Creek Local Fauna (Eocene: Uintan, Saskatchewan)
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约翰·斯托勒 (John Storer) 的评论,《Swift Current Creek 当地动物群的哺乳动物》(始新世:萨斯喀彻温省 Uintan)

DOI:
10.1080/02724634.1985.10011862
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发表时间:
1985
影响因子:
1.4
通讯作者:
R. Stucky
R. Stucky
中科院分区:
地球科学4区
文献类型:
--
作者:
R. Stucky

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自1966年black和Dawson的综合综述以来,关于北美尤因坦陆生哺乳动物时代(始新世中晚期,约48.5 ~ 41mya)的动物区系积累了大量新的信息。对来自加利福尼亚(Golz and Lillegraven, 1977)、德克萨斯州(如Wilson, 1974, 1984)和怀俄明州的Badwater地区(如Black, 1978; Dawson, 1980)的尤因坦地区动物群的研究表明,随着更多的类群成为北美西部、南部和中部落基山脉地区的特有物种,尤因坦时期哺乳动物群变得越来越地方性(Lillegraven, 1979);在始新世后期,密切相关的分类群之间的形态差异似乎有所增加,这反映在一般或特殊的区别上。重要的是,这种省区性增强的模式可能在同一时期也发生在欧洲和亚洲(见Russell et al., 1982; Li and Ting, 1983)。尤因坦省的演变是地理距离、时间、植物区系和/或在社区层面上运作的生态过程的影响的结果,是一个有趣的谜题,需要解决。随着约翰·斯托弗关于加拿大萨斯喀彻温省南部柏树山地层的激流溪当地动物群的专著的出版,福建动物群的有趣方面变得更加明显。Swift Current Creek当地动物群,代表了北美最北端的出现,也是大平原地区唯一大量出现的晚始新世哺乳动物,由Russell和Wickenden于1933年首次报道。最初描述了14个分类群,包括始新世晚期首次记录的鞭毛类。1965年,罗素修改了动物群,修正了早期的鉴定,并报告了其他哺乳动物物种的出现,这增加了动物群与其他尤恩时代动物的相关性。从1976年到1980年,斯托尔和他的同事在当地收集了1000多个标本,使哺乳动物的总数达到53种。作为Storer工作的结果,发现了两个新属——wallia(昆虫目,原翅蝗科)和Ibarus(偶蹄目,细翅蝗科)和Didelphodus、Thylacaelurus、Auxontodon、Microparamys、pseudoylindrodon的新种。Namatomys。”
Much new information regarding the mammalian faunas from the Uintan Land Mammal Age (middle to late Eocene, about 48.5 to 41 MYA) ofNorth America has accumulated since the synthetic review ofBlack and Dawson in 1966. Studies of Uintan faunas from California (Golz and Lillegraven, 1977), Texas (eg Wilson, 1974, 1984) and the Badwater area in Wyoming (eg Black, 1978; Dawson, 1980) have resulted in the recognition that mammalian faunas became increasingly more provincial through Uintan time, as more taxa became endemic to the Western, Southern and Central Rocky Mountain regions ofNorth America (Lillegraven, 1979); morphological differences between closely related taxa appear to have increased, as reflected by generic or specific distinctions, by the latter part of the Eocene. Importantly, this pattern of enhanced provinciality may have also occurred in Europe and Asia during the same time (see Russell et al., 1982; Li and Ting, 1983). Whether the evolution of Uintan provinciality is the result of the effects of geographic distance, time, floristic provinciality and/or ecological processes operating at the community level is an interesting puzzle that begs to be solved. Interesting aspects ofUintan faunal provinciality become even more pronounced with the publication of John Storer's monograph on the Swift Current Creek local fauna from the Cypress Hills Formation ofsouthem Saskatchewan, Canada. The Swift Current Creek local fauna, representing the northernmost occurrence in North America and only substantial occurrence in the Great Plains region of late Eocene mammals, was first reported by Russell and Wickenden in 1933. Fourteen taxa were originally described, including the first record oflagomorphs in the late Eocene. In 1965, Russell revised the fauna, correcting earlier identifications and reporting the occurrences ofadditional mammal species that added weight to the correlation ofthe fauna with others of Uintan age. Storer and his colleagues collected over 1000 specimens from the locality from 1976 to 1980, which brought the total number ofmammal species to 53. As a result of Storer's work, two new genera-Wallia (Insectivora, Proscalopidae) and Ibarus (Artiodactyla, Leptochoeridae)-and new species of Didelphodus, Thylacaelurus, Auxontodon, Microparamys, Pseudocylindrodon." Namatomys,"