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A Late Miocene Huerzelerimys (Rodentia: Muridae) skull from Hezheng, Gansu, China

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  • 1 Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences Beijing 100044
    2 School of Earth and Space Sciences, Peking University Beijing 100871
    3 State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences Nanjing 210008

Received date: 2019-12-29

  Online published: 2020-04-20

Abstract

A skull with mandible and several cervicals of a new species of Huerzelerimys, H. asiaticus, collected from the Late Miocene Liushu Formation in Linxia Basin, Gansu Province, is described in this paper. The skull is the first one ever found for the genus Huerzelerimys. Its main characters are: size small; skull broad and short with stout rostrum; interorbital roof narrow; premaxillary laterodorsal crest well developed; frontal crests weak and subparallel; incisive foramina long, with their posterior ends lined up with anterior root of M1; posterior palatal foramina located mesial to M2; caudal border of hard palate lying posterior to M3; interpterygoid foramen absent; alisphenoid canal bony; bulla large and inflated; internal carotid foramen located near the basilar tubercle; mandible having low horizontal ramus and deeply concave diastema; anterior end of masseteric ridge lined up with anterior margin of m1; mental foramen situated slightly anterior to masseteric ridge and anteroventral to m1, near to mandibular diastema; upper incisors orthodont; M1 having slightly anteriorly located t1; in M1 and M2 t6 and t9 connected by distinct crest and t12 crest-like; t1 and t3 of M2 and t1 of M3 connected to t5; M3 having t3 and a large isolated t8; small Acc of m1 connected with both Alc and Abc; m1 and m2 having distinct buccal cingula, larger c2 attached to protoconid, and low crest-like posterior heel; m2 and m3 having isolated Abc; c1 absent in m3. The evolutionary level of the described skull tends to show that the age of the upper part of the Liushu Formation yielding H. asiaticus may belong to late Bahean, corresponding to European upper MN11 or lower MN12.

Cite this article

WANG Ban-Yue, QIU Zhan-Xiang, LI Lü-Zhou . A Late Miocene Huerzelerimys (Rodentia: Muridae) skull from Hezheng, Gansu, China[J]. Vertebrata Palasiatica, 2020 , 58(2) : 120 -133 . DOI: 10.19615/j.cnki.1000-3118.200319

References

[1] Ellerman J R, 1941. The Families and Genera of Living Rodents. Vol II. Family Muridae. British Museum (Natural History). Norwich: Jarrold and Sons Ltd. 1?690
[2] Engesser B, 1989. The Late Tertiary small mammals of the Maremma region (Tuscany, Italy). 2nd part: Muridae and Cricetidae (Rodentia, Mammalia). Boll Soc Paleont Ital, 28(2-3): 227?252
[3] Freudenthal M, Martín Suárez E, 1999. Family Muridae. In: R?ssner G E, Heissig K eds. The Miocene Land Mammals of Europe. München: Verlag Dr. Friedrich Pfeil. 401?409
[4] Greene E C, 1935. Anatomy of the rat. Trans Am Philos Soc, New Ser, 27: 1?370
[5] Guthrie D A, 1963. The carotid circulation in the Rodentia. Bull Mus Comp Zool, 128(10): 455?481
[6] Huang W J, Chen Y X, Wen Y X, 1995. Rodents of China. Shanghai: Fudan University Press. 1?308
[7] Martín Suárez E, Freudenthal M, 1993. Muridae (Rodentia) from the Lower Turolian of Crevillente (Alicante, Spain). Scripta Geol, 103: 65?118
[8] Mein P, Martín Suárez E, Agustí J, 1993. Progonomys Schaub, 1938 and Huerzelerimys gen. nov. (Rodentia); their evolution in Western Europe. Scripta Geol, 103: 41?64
[9] Michaux J, 1969. Muridae (Rodentia) du Pliocène supérieur d’Espagne et du Midi de la France. Palaeovertebrata, 3(1): 1?25
[10] Pan Q H, Wang Y X, Yan K, 2007. A Field Guide to the Mammals of China. Beijing: China Forestry Publishing House. 1?420
[11] Qiu Z D, Li Q, 2008. Late Miocene micromammals from the Qaidam Basin in the Qinghai-Xizang Plateau. Vert PalAsia, 46(4): 284?306
[12] Qiu Z D, Li Q, 2016. Neogene rodents from central Nei Mongol, China. Palaeont Sin, New Ser C, 30: 1?684
[13] Schaub S, 1938. Terti?re und quat?re Murinae. Abh Schweiz Palaeont Gesell, 61: 1?39
[14] Wang B Y, Qiu Z X, 2018. Late Miocene Pararhizomyines from Linxia Basin of Gansu, China. Palaeont Sin, New Ser C, 31: 1?271
[15] Yang A F, Wang P, et al., 1985. Anatomys and Histology of Rat. Beijing: Science Press. 1-241
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