Table of Content

15 December 1994, Volume 32 Issue 04

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ZHAOTONGASPIS JANVIERI GEN. ET SP. NOV., A GALEASPID FROM EARLY DEVONIAN OF ZHAOTONG， NORTHEASTERN YUNNAN

Wang Junqing, Zhu Min

1994, 32(04):  231-243. 

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A new galeaspid, Zhaotonggaspis janvieri (gen. et sp. nov.), from the Posongchong Formation (Early Devonian Pragian) of Zhaotong northeastern Yunnan, China is described. This genus is characterized by at least 31 pairs of branchial fossae, which is the highest number ever recorded in agnathans. Its overall morphology is suggestive of both the Polybranchiaspiformes and Huananaspiformes. A new galeaspid family, Zhaotongaspidae (fame nov.), is erected on the basis of the Zhaotong material, and suggested that Antiquisagittaspis is a possible member of the new family. It is also proposed that the Zhaotongaspidae might. have the close affinity with the Duyunaspidae.

NEW MATERIAL OF SINOHELICOPRION FROM CHANGXING，ZHEJIANG PROVINCE

Liu Guanbang, Wang Qian

1994, 32(04):  244-248. 

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BIOMECHANICAL PROPERTIES OF DINOSAUR EGGSHELLS (ID—TWO BREAKING TYPES OF THE DINOSAUR EGGSHELLS UNDER EXTERNAL PRESSURE

Ma Hezhong, Zhao Zikui

1994, 32(04):  249-257. 

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A LATE MESOZOIC BIRD FROM INNER MONGOLIA

Hou Lianhai

1994, 32(04):  258-266. 

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A new fossil bird (Otogornis genghisi gen. et sp. nov.) is introduced on the basis of the description of the pectoral girdle and wing bones of a skeleton from Lower Cretaceous of Inner Mongolia, China. The specimen was collected by a field team of the Sino-Canadian Dinosaur Expedition. It was preserved in the grey -green mudstones of the Yijinhuoluo Formation in Otogqi. This bird represents the earliest records of avian fossil in China.

A HYPOTHESIS ON THE EVOLUTIONARY ORIGIN OF THE SQUAMOSAL BONE IN THE THERIAN MAMMALS

Zhang Fakui

1994, 32(04):  267-274. 

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A NEW NEOPLAGIAULACID MULTITUBERCULATE (MAMMALIA) FROM THE LOWER EOCENE OF WUTU BASIN, SHANDONG

Tong Yongsheng, Wang Jingwen

1994, 32(04):  275-284. 

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This paper places on record Mesodmops, a new genus of a multituberculate family of mammals, Neoplagiaulacidae. Previously known multituberculate materials from early Tertiary of Asia have been all allocated into the family Taeniolabididae. No ptilodontoid multituberculate has been reported in this continent until the discovery of the Wutu specimens. The Wutu specimens were collected from Wutu Formation, Lower Eocene in 1992 and are concurrent with Changlelestes dissetiformis (Insectivora, see Tong and Wang, 1993), ischyromyid rodents, carpolestid primates, primitive perissodactyls and other mammals.

DISCOVERY OF TWO MID-TERTIARY MAMMALIAN FAUNAS FROM HAIYUAN, NINGXIA, CHINA

Wang Banyue, Yan Zhiqiang, Lu Yanjun, Chen Guoxin

1994, 32(04):  285-296. 

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LATE PLEISTOCENE MAMMALIAN FOSSILS FROM YUZHONG，GANSU

Xie Guangpu, Zhang Xing, Chen Shanqin

1994, 32(04):  297-306. 

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Some Late Pleistocene mammalian fossils collected from Shangkushui of Yuzhong County, Gansu Province, are described in this paper. They are Mrcrotus gregalis, Ochotona sp., Felis tigris, Equus przewalskii, Coelodonta antiquitatis, Cervus (Sika) sp., Antilopinae gen. indet., Ovis nahoor and Bovinae gen. indet.. The assemblage shows that the Shangkushui fauna is of middle-late period Of Late Pleistocene. This is a new locality of Late Pleistocene mammalian fossil In the central part of Gansu Province Where Quaternary mammalian fossils have not been much explored.