The Cricetidae (Rodentia, Mammalia) from the Ulantatal area (Inner Mongolia, China): New data concerning the evolution of Asian cricetids during the Oligocene

Rodrigues, Helder Gomes; Marivaux, Laurent; Vianey‐Liaud, Monique

doi:10.1016/j.jseaes.2012.05.007

Cited by 18 publications

(36 citation statements)

References 23 publications

(23 reference statements)

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“…It has also a number of features that fit the emended diagnosis for E. asiaticus made by Gomes Rodrigues et al (2012a): the M1 with a simple anterocone and an anterior arm of the protocone usually free, a metalophule joining the mesial or middle part of the hypocone. The m1 have an anteroconid developed, central, isolated, or linked to the protoconid.…”

Section: Systematic Palaeontologymentioning

confidence: 52%

“…The single protocone–paracone connection is also a basal feature (Li et al 2016) and is the general condition in the whole sample. An anterior connection of the metalophule is also basal (Maridet et al 2009; Gomes Rodrigues et al 2012a; Li et al 2016). The Mongolian material displays posterior connection on the younger localites.…”

Section: Systematic Palaeontologymentioning

confidence: 99%

“…The most recent definition is found in Dienemann (1987). More than 25 species have been described under Eucricetodon (Wang 1987; Ünay 1989; Maridet et al 2009; Gomes Rodrigues et al 2012a; Li et al 2016). This is one of the eight genera of cricetids known from the Oligocene of Europe (Mein and Freudenthal 1971) and an important member of the Asian assemblages.…”

Section: Introductionmentioning

confidence: 99%

“…Diversity of Eucricetodon in Asia is poorly constrained compared to that recorded in Europe. It is common in Kazakhstan (Shevyreva 1967; Lopatin 1996) and China (Wang 1987), but before the revision of the Ulantatal material by Gomes Rodrigues et al (2012a), only a few species of Eucricetodon were known in the Asian Oligocene (Lindsay 1978; Wang 1987, 2007; Wang and Qiu 2000; Lopatin 1996). The knowledge of Eucricetodon has been recently improved with new discoveries and revisions in Kazakhstan (Bendukidze et al 2009) as well as in Inner Mongolia (Gomes Rodrigues et al 2012a; Li et al 2016) and the Junggar basin (Maridet et al 2009) in China.…”

Section: Introductionmentioning

confidence: 99%

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Evolution of the genus Eucricetodon (Rodentia, Mammalia) from the Valley of Lakes (Mongolia): a taxonomical description and update on the stratigraphical distribution

López-Guerrero

Maridet

Daxner-Höck

2016

Palaeobio Palaeoenv

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The Oligocene fossil deposits from Valley of Lakes in Central Mongolia have provided a wealth of rodent fossils. Among these, cricetids are a very important part. To date, only the Miocene genera have been described in detail. Here, we focus on the Oligocene genus Eucricetodon from this region. Eucricetodontinae are the most abundant fossils in the Oligocene Valley of Lakes faunas. The present study consists of the description of five species of cricetid rodents from 43 localities ranging in age from the early Oligocene to the early-late Oligocene. In addition to Eucricetodon asiaticus described in Mongolia in 1923, we have found Eucricetodon bagus and Eucricetodon jilantaiensis that were described from Nei Mongol and Eucricetodon occidentalis discovered in Kazakhstan. This taxonomical study provides new information regarding the evolution of the Cricetidae in Central and Eastern Asia during the Oligocene and, more particularly, regarding their phylogenetic relationships and the evolutionary trends.

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Section: Systematic Palaeontologymentioning

confidence: 52%

Section: Systematic Palaeontologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Evolution of the genus Eucricetodon (Rodentia, Mammalia) from the Valley of Lakes (Mongolia): a taxonomical description and update on the stratigraphical distribution

López-Guerrero

Maridet

Daxner-Höck

2016

Palaeobio Palaeoenv

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“…by Gomes Rodrigues et al [56]. The anatomical abbreviations for the first, second and third upper molars are M1, M2, and M3 and, similarly, for lower molars, m1, m2, and m3.…”

Section: Methodsmentioning

confidence: 99%

A new species of Argyromys (Rodentia, Mammalia) from the Oligocene of the Valley of Lakes (Mongolia): Its importance for palaeobiogeographical homogeneity across Mongolia, China and Kazakhstan

et al. 2017

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We describe a new species of Rodentia (Mammalia), Argyromys cicigei sp. nov. from Toglorhoi (fossil bed TGW-A/2a) in Mongolia and Ulantatal (fossil beds UTL 1 and UTL 7) in China. Its tooth morphology differs from the type species Argyromys aralensis from Akespe in Kazakhstan by smaller size and simpler structures. Argyromys has been assigned in different families of Muroidea, such as Tachyoryctoididae and Spalacidae. However, the presence of common characters indicates a closer relationship of Argyromys with the genera of Cricetidae s.l. (subfamilies Eucricetodontinae; Cricetopinae; Cricetodontinae and Gobicricetodontinae among others) from Asia than with the earliest representatives of Spalacidae or the endemic Tachyoryctoididae. Argyromys cicigei sp. nov. possesses a simple anterocone and anteroconid in the upper and lower first molars, respectively, which is characteristic for Cricetidae s.l. It has a flat occlusal surface in worn specimens; weakly-developed posterolophs; an oblique protolophule and metaloph on the upper molars and it lacks a labial anterolophid on the m1. These traits are also typical of the Oligocene genera Aralocricetodon and Plesiodipus, included in the subfamilies Cricetodontinae and Gobicricetodontinae respectively. The cladistic analysis performed here supports this hypothesis. The clade formed by Argyromys species is grouped with other cricetid taxa (s.l). Spalacids, however, form a different clade, as do the tachyoryctoids. Previous authors state that the Aral Formation (Kazakhstan) should be dated to the Oligocene instead of the Miocene, based on the presence of several taxa. The finds of Argyromys in both regions supports the statement that they are closer in age than previously thought. The occurrence of Argyromys in Kazakhstan, Mongolia and China evidences the biogeographic unity of the Central Asian bioprovince during the Oligocene.

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Oligocene stratigraphy across the Eocene and Miocene boundaries in the Valley of Lakes (Mongolia)

Daxner-Höck

Badamgarav

Барсболд

et al. 2017

Palaeobio Palaeoenv

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Cenozoic sediments of the Taatsiin Gol and TaatsiinTsagaan Nuur area are rich in fossils that provide unique evidence of mammal evolution in Mongolia. The strata are intercalated with basalt flows. 40Ar/39Ar data of the basalts frame the time of sediment deposition and mammal evolution and enable a composite age chronology for the studied area. We investigated 20 geological sections and 6 fossil localities of Oligocene and early Miocene deposits from this region. Seventy fossil beds yielded more than 19,000 mammal fossils. This huge collection encompasses 175 mammal species: 50% Rodentia, 13% Eulipotyphla and Didelphomorphia, and 12% Lagomorpha. The remaining 25% of species are distributed among herbivorous and carnivorous large mammals. The representation of lower vertebrates and gastropods is comparatively poor. Several hundred SEM images illustrate the diversity of Marsupialia, Eulipotyphla, and Rodentia dentition and give insight into small mammal evolution in Mongolia during the Oligocene and early Miocene. This dataset, the radiometric ages of basalt I (∼31.5 Ma) and basalt II (∼27 Ma), and the magnetostratigraphic data provide ages of mammal assemblages and time ranges of the Mongolian biozones: letter zone A ranges from ∼33 to ∼31.5 Ma, letter zone B from ∼31.5 to ∼28 Ma, letter zone C from ∼28 to 25.6 Ma, letter zone C1 from 25.6 to 24 Ma, letter zone C1-D from 24 to ∼23 Ma, and letter zone D from ∼23 to ∼21 Ma.Electronic supplementary materialThe online version of this article (doi:10.1007/s12549-016-0257-9) contains supplementary material, which is available to authorized users.

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The Cricetidae (Rodentia, Mammalia) from the Ulantatal area (Inner Mongolia, China): New data concerning the evolution of Asian cricetids during the Oligocene

Cited by 18 publications

References 23 publications

Evolution of the genus Eucricetodon (Rodentia, Mammalia) from the Valley of Lakes (Mongolia): a taxonomical description and update on the stratigraphical distribution

Evolution of the genus Eucricetodon (Rodentia, Mammalia) from the Valley of Lakes (Mongolia): a taxonomical description and update on the stratigraphical distribution

A new species of Argyromys (Rodentia, Mammalia) from the Oligocene of the Valley of Lakes (Mongolia): Its importance for palaeobiogeographical homogeneity across Mongolia, China and Kazakhstan

Oligocene stratigraphy across the Eocene and Miocene boundaries in the Valley of Lakes (Mongolia)

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