Table of Content

15 September 1999, Volume 37 Issue 03

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EOCENE MAMMALS FROM THE BAYAN ULAN OF NEI MONGOL (INNER MONGOLIA) AND COMMENTS ON RELATED STRATIGRAPHY

MENG Jin, YE Jie, HUANG Xue-Shi

1999, 37(03):  165-174. 

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Four Eocene mammals were reported from the Bayan Ulan locality, Nei Mongol, China, including a new rodent species— Mergenomys neimongolensis. The new species differs from the type species of the genus, M orientalis, in being larger and having the ectolophid and hypoconulid more labially positioned. Based on the fossils and stratigraphic correlations, the beds that were previously considered to be "Irdin Manha Fomation" in the Bayan Ulan section are actually two rock units: the Irdin Manha formaüon below and the Shara Murun formation above. The new materials come from the late Middle Eocene Shara Murun formation.

THE GENUS ANANCUS AYMARD, 1855 (PROBOSCIDEA, MAMMALIA) FROM THE LATE NEOGENE OF NORTHERN CHINA

CHEN Guan-Fang

1999, 37(03):  175-183. 

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MAMMALIAN FOSSILS FROM LATE PLIOCENE (LOWER 16) OF LINGTAI, GANSU PROVINCE

ZHANG Yun-Xiang, SUN Dong-Huai, AN Zhi-Sheng, XUE Xiang-Xu

1999, 37(03):  190-199. 

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NEW MATERIAL OF MICROBRACHIUS FROM LOWER DEVONIAN OF QUJING，YUNNAN，CHINA

WANG Jun-Qing, ZHANG Guo-Rui

1999, 37(03):  200-211. 

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A new species of Microbrachius, M. chuandongensis sp. nov., is described in this paper. The referred specimens include one complete head-shield articulated with its trunk-armour, one head-shield, two trunk-armours, one proximal segment of the pectoral appendage, and some plates showing the ornamentation. All the material was collected from the Upper Emsian (Lower Devonian) of Chuandong Village, west Qujing, Yunnan Province.

DISCOVERY OF FOSSIL COREOPERCA (PERCIFORMES) IN CHINA

CHEN Ping-Fu, LIU Huan-Zhang, YAN Ji-Xing

1999, 37(03):  212-227. 

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NEW HESPERORMTHID (AVES) FROM THE CANADIAN ARCTIC

HOU Lian-Hai

1999, 37(03):  228-233. 

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In early 1991, when I was at the Canadian National Museum, Dr. D. A. Russell kindly provided me some hesperornithid fossils for study. The specimens were collected from Bylot Island, Canada. Hesperornis is largely restricted to North America, especially in the Niobrara Formation of the United States (Feduccia, 1996) The youngest individual of the genus, represented by a left tarsometatarsus, was recovered from Western Alberta in Canada (Fox, 1974). The hesperornithid fossils from the Bylot Island represent the latest record of the Hesperornithidae, and the northernmost occurrance so far. The large size and morphologic specializaion are the main cause for its extinction.

NEW ANTHRACOSAUR AND TEMNOSPONDYL AMPHIBIANS FROM GANSU, CHINA—THE FIFTH REPORT ON LATE PERMIAN DASHANKOU LOWER TETRAPOD FAUNA

Ll Jin-Ling, CHENG Zheng-Wu

1999, 37(03):  234-247. 

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Based on materials collected from Dashankou, Yumen, Gansu, 3 new genera and species—lngentidenscorridoricus, Phratochronis qilianensis and Anakamacops petrolicus belonging to Anthracosauria and Temnospondyli, are described in the present paper. Associated with the amphibians are abundant therapsid and bolosaur, which were described previously (Li and Cheng, 1995, 1997; Cheng and Ji, 1996; Cheng and Li, 1997). The Dashankou fauna is the most diverse and abundant tetrapod fauna so far known from the Permian deposits of China. Most members of the fauna show primitive features of lower tetrapods and are more closely related to those of Upper Permian of Russian.