A New Species of Anourosorex (Soricidae, Lipotyphla) from the Pleistocene of Vietnam

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Abstract

Jaw fragments and isolated teeth of the mole shrew Anourosorex andabata sp. nov. are described from the Middle Pleistocene deposits of Tham Hai cave (Lang Son Province, northern Vietnam). This is the first fossil record of Anourosorex in Vietnam. The new species is characterized by medium size (as in Recent A. squamipes Milne-Edwards, 1872), a narrow apex of the coronoid process of the mandible and a weakly reduced (relatively long and wide) talonid of M1.

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About the authors

A. V. Lopatin

Borissiak Paleontological Institute, Russian Academy of Sciences

Author for correspondence.
Email: alopat@paleo.ru
Russian Federation, Moscow, 117647

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Supplementary files

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2. Fig. 1. Anourosorex andabata sp. nov.: a, b – ex. PIN, No. 5826/826, fragment of the right maxillary bone from I1–M1: a – from the labial side, b – from the occlusal side; c–d – ex. PIN, No. 5826/827, fragment of the right mandibular bone from I1–M3: b – from the labial side, g – from the occlusal side, d – from the lingual side; e–i – holotype PIN, No. 5826/828, left mandibular bone from I1 and M1–M3: e – from the labial side, w – from the occlusal side, z – from the lingual side, and – from the back side; k–m – ex. PIN, No. 5826/829, right mandibular bone from I1–M1: k – from the labial side, l – from the occlusal side, m – from the lingual side; n–n – ex. PIN, No. 5826/830, fragment of the left mandibular bone from I1–M1: h – from the labial side, o – from the occlusal side, p – from the lingual side; p–t – ex. PIN, No. 5826/831, fragment of the left mandibular bone from P4–M2: p – from the labial side, c – from the occlusal side, t – from the lingual side; Vietnam, Lang Son province, Tam Ha cave

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3. Fig. 2. Anourosorex andabata sp. nov., radiographs: a – copies. PIN, No. 5826/826, fragment of the right maxillary bone from I1–M1 on the labial side; b – ex. PIN, No. 5826/829, right mandibular bone from I1–M1 on the labial side; in – ex. PIN, No. 5826/827, fragment of the right mandibular bone from I1–M3 on the lingual side; g – holotype PIN, No. 5826/828, left mandibular bone from I1 and M1–M3 on the lingual side; Vietnam, Lang Son Province, Tam Hai cave; Middle Pleistocene.

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4. Fig. 3. Anourosorex andabata sp. nov., upper teeth (SAM): a – ex. PIN, No. 5826/826, right I1–M1 from the occlusal side; b–d – ex. PIN, No. 5826/621, right I1: b – from the labial side, c – from the occlusal side, d – from the lingual side; d – ex. PIN, No. 5826/622, right I1 from the occlusal side; e – copy. PIN, No. 5826/623, left P4 from the occlusal side; Vietnam, Lang Son Province, Tam Hai Cave; Middle Pleistocene.

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5. Fig. 4. Anourosorex andabata sp. nov., lower teeth from the occlusal side (SEM): a – ex. PIN, No. 5826/827, right I1–M3; b – copy. PIN, No. 5826/829, right I1–M1; b – holotype PIN, No. 5826/828, left I1 and M1–M3; d – ex. PIN, No. 5826/830, left I1–M1; d – copy. PIN, No. 5826/831, left P4–M2; e – copy. PIN, No. 5826/624, left M2; Vietnam, Lang Son Province, Tam Hai Cave; Middle Pleistocene.

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