Table of Content

15 March 1999, Volume 37 Issue 01

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A LONG-NECKED DIAPSID REVHLE FROM THE UPPER JURASSIC / LOWER CRETACEOUS OF LIAONING PROVINCE, NORTHEASTERN CMNA

GAO Ke-Qin, TANG Zhi-Lu, WANG Xiao-Lin

1999, 37(01):  1-8. 

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A new diapsid reptile is named and described on the basis of a well—preserved skeleton from the Late Jurassic / Early Cretaceous Yixian Formation, Liaoning Province, northeastern China. The specimen represents an unusually long—necked diapsid, which shows specialized adaptations to an aquatic life style in a lacustrine environment. Morphological characters, such as the small skull with a pointed snout, needle—like teeth, and a long neck, strongly indicate a piscivorous diet of the animal. This discovery documents the. first known long—necked reptile from the Mesozoic lake deposits of northeastern China.

NEW MATERIALS OF PSEUDICTOPIDAE (ANAGALIDA, MAMMALIA) FROM EARLY—NNDDLE PALEOCENE OF QIANSHAN BASIN, ANHUI

ZHENG Jia-Jian, ZHENG Long-Ting, HUANG Xue-Shi

1999, 37(01):  9-17. 

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The new materials of Pseudictopidae from Early to Middle Paleocene Wanghudun Formaüon of Qianshan Basin, Anhui are described in the present paper. They represent two genera and three species: Anictops tabiepedis Qiu, 1977, Anictops wanghudunensis sp. nov. and Paranictops aff. P. majuscula Qiu, 1977. The new species differs from type species of the genus mainly in having relatively robust mandible and fransversely wide cheek teeth, more reduced paraconid which is very near to the metaconid on lower cheek teeth, no notch in the middle of metalophid on p4 and no hypoconulid on the first two lower molars, m3 with short hypoconulid and round talonid, and relaüvely wide upper cheek teeth without distinct anterior cingulum. The difference between Paranictops aff. P. majuscula and Paranictops majuscula is mainly in the width of trigonids and talonids of the first two lower molars. In the former the talonids are wider than trigonids while in the latter species it is just the opposite. The new finds further demonstrate that pseudictopids were flourishing in the Early to Middle Paleocene of Qianshan Basin.

A RESTUDY OF THE EOCENE RUMINANTS FROM BAISE AND YONGLE BASINS, GUANGXI, CHINA, WITH A DISCUSSION OF THE SYSTEMATIC POSITIONS OF INDOMERYX, NOTOMERYX, GOBIOMERYX AND PRODREMOTHERIUM

GUO Jian-Wei, QI Tao, SHENG Hong-Jie

1999, 37(01):  18-39. 

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Summary can be seen in PDF.

INCISOR ENANTL NNCROSTRUCTURE AND PHYLOGENETIC POSITION OF ZELOMYS

WANG Ban-Yue， OUYANG Lian

1999, 37(01):  40-47. 

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Summary can be seen in PDF.

ALLACEROPS (RHINOCEROTOIDEA, PERISSODACTYLA), ITS DISCOVERY IN CHINA AND ITS SYSTEMATIC POSITION

QIU Zhan-Xiang, WANG Ban-Yue

1999, 37(01):  48-61. 

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Allacerops is a comparatively poorly known Asian Oligocene rhinoceros genus. Paleontologists differ widely concerning its systematic position. It had not been found in China until 1996, when the lower jaw (IVPP V9964) was unearthed from the second layer of the yellow sandstone of the Lower Member of the Xianshuihe Formation at GL 9605 in the Dahonggou area of the Lanzhou Basin, Gansu Province (vide Qiu et al., 1997). The discovery not only verified our previous dating of the yellow sandstone of the Lanzhou Basin as of Oligocene, but also provided us with important new information as to the affinity of the poorly known genus Allacerops.

EQUUS QINGYANGENSIS SP. NOV. (PERISSODACTYLA, EQUIDAE) FROM THE EARLY PLEISTOCENE OF QINGYANG, GANSU, CMNA

DENG Tao,XUE Xiang-Xu

1999, 37(01):  62-74. 

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In 1961, Xue Xiangxu and Wang Yongyan collected a lot of mammalian fossils from Bajiazui of Qingyang County, Gansu Province. The fossils come from the sandy beds in the bottom of the section, including Canis chihliensis, Meles cf. M chiai, Hyaena cf. H. licenti, Megateron sp., Epimachairodus sp., E. cf. E. crenatidens, Felis sp., Hipparion cf. H. sinensis, Sus cf. S. lydekkeri, Megaloceros sp., Cervus sp., Gazella sp., G. cf. G. sinensis, Bison palaeosinensis, Bovidae indet., Uospalax cf. M. arvicolinus, and M. tingi, etc. (Wang et al., 1966, 1982). Among the materials there are many skulls, mandibles, cheek teeth and limb bones of the genus Equus. A new species of Equus is described in this paper. NWUV is the prefix to the vertebrate fossils in Departnent of Geology, Northwest University.