期刊
CRETACEOUS RESEARCH
卷 26, 期 4, 页码 593-608出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.cretres.2005.03.007
关键词
mammals; Khodzhakul Formation; Sheikhdzhefli local fauna; mid-Cretaceous; Kyzylkum Desert; Uzbekistan
Six localities in the mid-Cretaceous (early Cenomanian) Khodzhakul Formation, western Kyzylkum Desert, Uzbekistan, produced mammalian remains of a possible zalambdalestoid (Boholestes), a possible zalambdalestid, and two (Sheikhdzheilia rezvyii, gen, et sp. nov. and Eozhelestes mangit) or three zhelestids (Zhelestidae indet., unnamed large sp. A). This is termed the Sheikhdzheili local fauna. Previously, these mammals were recognized only as being three eutherians of uncertain affinities (Bobolestes, Otlestes, and Oxlestes) and a possible zhelestid (Eozhelestes). The reinterpretation of Bobolestes including Otlestes as a synonym could have an impact on phylogenetic reconstructions of basal Eutheria. With five eutherian species occurring at about 95 million years ago (early Cenomanian), the Sheikhdzheiti local fauna is the earliest mammalian fauna to have more than two species of eutherian. European Campanian-Maastrichtian Lainodon and Labes, which have been argued to be zhelestids (and the hadrosaurid Telmatosaurus), retain ancestral traits reminiscent of earlier, early Cenomanian Asian taxa, such as those in the Sheikhdzheili local fauna, suggesting that they may be isolates restricted on the European Archipelago after the formation of the Turgai Strait in the Turonian. (c) 2005 Elsevier Ltd. All rights reserved.
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