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Morphotype analysis of the sibling vole (Microtus rossiaemeridionalis) casually introduced to the Russian Far East

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Tiunov M. P., Kartavtseva I. V.

Acta Theriologica

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2013

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tom 58

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nr 1

Here, we present the morphotypic variety of the m1 and M3 teeth diagnostics for the recently formed isolated population of the sibling vole in Far Eastern Russia. In the Far Eastern population, the prevalence of the individuals with m1 with a complicated crown of the forward unpaired loop of the paraconid is characteristic. Namely, m1 in these individuals shows well-expressed sixth exterior and fifth interior salient angles. The structure of the M3 morphotypes is also unique in the sibling voles in Far Eastern Russia. The dominant morphotypes were typica (47 %) and simplex (45 %), whereas the abundance of the duplicata morphotype was 0.08 %. The frequencies of various m1 and M3 morphotypes found in casually introduced sibling voles in the Far East are not typical of any previously studied Microtus rossiaemeridionalis population.

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A new mouse-eared bat (Mammalia: Chiroptera, Vespertilionidae) from South China

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Tiunov M. P., Kruskop S. V., Feng J.

Acta Chiropterologica

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2011

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tom 13

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nr 2

A small Myotis species belonging to the Myotis siligorensis group was found in four caves in Yunnan province, South China. Twenty specimens of this bat were compared with other East Asian Myotis species. Statistical and physical analysis of this sample demonstrates that, despite their similarity to M. siligorensis, the Yunnan specimens have characteristics of baculum morphology and cranial proportions suggesting that they represent a distinct species.

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The first finding of Mimomys in the Russian Far East

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Tiunov M. P., Golenishchev F. N., Voyta L. L.

Acta Palaeontologica Polonica

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2016

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tom 61

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nr 1

A new species of the Mimomys is described from the Far East Russia (the Medvezhyi Klyk cave, Sikhote-Alin). Layer 7 of the Medvezhyi Klyk cave (1.08–1.18 m) was dated to be 13 790–14 200 BP. Mimomys chandolensis sp. nov. was found in a deeper layer (2.63–2.68 m) and therefore assuming there was no redeposition of the remains and that the accumulation proceeded gradually, the molar specimen we found is 30–50 kyr old. Due to the extent of the preservation we observed in the molar and the structure of the cave, the specimen does not seem likely to have been redeposited. Our hypothesis is that due to the warm and wet climate of the region, the vole, which became extinct more than 600 kyr ago, had been extant there by the Late Pleistocene period. The new species is hypsodont, with a few cement, a lack of enamel isle or prismatic fold; tangential and lamellar layers of enamel ultrastructure are poorly expressed.

Ograniczanie wyników

1 Acta Chiropterologica

1 Acta Palaeontologica Polonica

1 Acta Theriologica

3 Tiunov M. P.

1 Feng J.

1 Golenishchev F. N.

1 Kartavtseva I. V.

1 Kruskop S. V.

1 Voyta L. L.

1 2016

1 2013

1 2011

Morphotype analysis of the sibling vole (Microtus rossiaemeridionalis) casually introduced to the Russian Far East

A new mouse-eared bat (Mammalia: Chiroptera, Vespertilionidae) from South China

The first finding of Mimomys in the Russian Far East