New dipodid rodents from the Late Eocene of Erden Obo (Nei Mongol, China)

@article{Li2017NewDR,
  title={New dipodid rodents from the Late Eocene of Erden Obo (Nei Mongol, China)},
  author={Qian Li and Yan-Xin Gong and Yuanqing Wang},
  journal={Historical Biology},
  year={2017},
  volume={29},
  pages={692 - 703}
}
Abstract New dipodid occurrences (Heosminthus nomogenesis sp. nov., Sinosminthus sp., Allosminthus cf. A. majusculus, Allosminthus ernos and Allosminthus cf. A. diconjugatus) are reported from the ‘Upper Red’ beds of the Erden Obo section in Nei Mongol, China. Heosminthus nomogenesis is similar to Heosminthus primiveris from the Caijiachong Formation, and it is more primitive than Heosminthus chimidae of the Mongolian biozone A. Allosminthus cf. A. majusculus has a more variable mesolophid and… 
Eocene ctenodactyloid rodent assemblages and diversification from Erden Obo, Nei Mongol, China
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The ctenodactyloids show an initial burst in diversification in the upper part of the ‘Basal Red’ of the early Eocene, while Gobiomys, the only surviving genus, shows that the diversity of ctendactyloid rodents declined rapidly after late middle Eocene.
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Extant perissodactyls (horses, rhinos, and tapirs) comprise a small portion of living mam¬ mals, but fossil perissodactyls were more diverse and commonly dominated Paleogene faunas. Unfortunately,
Paleogene integrative stratigraphy and timescale of China
The Paleogene is the first period after the Mesozoic Mass Extinction. Mammals become the dominant group in the terrestrial ecosystem with a rapid radiation, and Asia has been considered to be the
New late Eocene cylindrodontid rodents from the Erlian Basin (Nei Mongol, China)
  • Qian Li
  • Biology, Environmental Science
    Palaeobiodiversity and Palaeoenvironments
  • 2020
TLDR
The fossils of Ardynomys and Pseudocylindrodon in the Erlian Basin suggest that the cylindrodontids-bearing strata are late Eocene, and provide new evidence of mammalian dispersal between Asia and North America during theLate Eocene.

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