Table of Content

15 December 1999, Volume 37 Issue 04

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DISCOVERY OF PLACODERM INFEROGNATHAL FROM CHINA

WANG Nan-Zhong, WANG Jun-Qing

1999, 37(04):  249-256. 

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A NEW PALAEOMSCOID FISH FROM THE UPPER TRIASSIC OF ZICHANG, NORTHERN SHAANXI

SU De-Zao

1999, 37(04):  257-266. 

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The fossil fish described here was collected from Zichang County, Northern Shaanxi, and is referred to a new genus and species, Wayaobulepis zichangensis, of the Palaeoniscidae. Wayaobulepis resembles Myriolepis in many respects, but is characterised by its obtusely acute snout, few fin-rays of the dorsal fin, numerous oblique ridges covered with enameloid on scales, and strong dorsal ridge-scales. By nature of Wayaobulepis and stratigraphic sequence, the age of the fish-bearing beds should be Late Triassic.

NEW OBSERVATIONS ON THE SKULL OF SINOGNATHUS GRACILIS (CYNODONTIA, REPTILIA) ASSISTING WITH CT SCAN TECHNIQUE

ZHANG Fa-Kui, DU Xiang-Ke, ZHU Qi-Zhi, CHENG Xi-Kan

1999, 37(04):  267-277. 

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The type specimen of Sinogathus gracilis is restudied. Some characters which former workers were not noted are replenished. Among the new discoveries the external auditory meatus interlinked with the cavity of middle ear by an opening at the bottom of extemal auditory meatus, and the side wall of braincase encircled completely by the laminae of bone are to paleontologists and evolutionary biologists. The result of CT scanning the type specimen of S. gracilis is satisfactory for us as follows: l) An exotic in the stuff in cavity of olfaction is found. 2) A trigonal region in the upper part on the corona section of the braincase, a structure unknown before, is tried to explained as the frontoparietal sinusis.

A NEW FORM OF ELONGATOOLITHID DINOSAUR EGGS FROM THE LOWER CRETACEOUS SHAHAI FORMATION OF HEISHAN, LIAONING PROVINCE

ZHAO Hong, ZHAO Zi-Kui

1999, 37(04):  278-284. 

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THE PRELIBUNARY STUDY OF THE DINOSAUR FOOTPRINTS FROM HUANGSHAN, ANHUI PROVINCE

YU Xin-Qi, KOBAYASHI, Yoshitsugu, LÜ Jun-Chang

1999, 37(04):  285-290. 

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The dinosaur tracksites and two isolated footprints from the Late Cretaceous of southern Anhui are briefly reported here. Based on morphology and aspects of the trackways, it suggests that most of trackways were left by bipedal dinosaurs, and at least three kinds of dinosaurs (Sauropoda, Theropoda and Ornithopoda) are identifiable, implying these dinosaurs co-existed. The isolated footprints belong to small dinosaurs, Theropoda and Omithopoda. At the locality, dinosaur bones and eggs are also occurred. The discovery of these dinosaur tracksites, bones, and eggs provides us important information for the study of paleoenvironment of the area and dinosaur behavior.

A NEW MIACIS (MAMMALIA, CARNIVORA, MIACIDAE) FROM THE MIDDLE EOCENE OF YUANQU BASIN, SHANXI PROVINCE

HUANG Xue-Shi, TONG Yong-Sheng, WANG Jing-Wen

1999, 37(04):  291-299. 

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The Chinese and American scientists have not only collected many mammalian fossils at known fossil localities but also found several new localities in Yuanqu Basin since 1994. Huoshipo, near Guojia Village, Wangmao Town is the most important one among those new localities, where we found several dozens of jaws and teeth Insectivora, Lagomorpha, Rodentia, Carnivora, Primates, Perissodactyla and Artiodactyla in the spring of 1998. The present paper dealt only with carnivorous fossil, which is the best upper jaw and dentation of Miacis so far found in China.

THE PETROSAL MORPHOLOGY OF A LATE OLIGOCENE ERINACEID FROM NORTH JUNGGAR BASIN

MENG Jin, YE Jie, WU Wen-Yu, Bl Shun-Dong

1999, 37(04):  300-308. 

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THE CHARACTERS, GEOLOGICAL AGE AND THE ECOLOGICAL ENVIRONMENT OF LONGYADONG CAVE FAUNA, LUONAN, SHAANXI

XUE Xiang-Xu, Ll Chuan-Ling, DENG Tao, CHEN Min-Quan, ZHANG Xue-Feng

1999, 37(04):  309-325. 

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FOOTPRINTS OF ARTIODACTYLS IN TUNGGUR, NEI MONGOL

DONG Ming-Xing

1999, 37(04):  326-329. 

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Three kinds of artiodactyl footprints from Tunggur Formation are described:l)four-toe footprint with all four subequal toes distinct; 2) two-toe footprint with the posterior part joined and the anterior part distinct; 3) two-toe footprint with the third and the forth digits completely distinct. The anterior part of the four-toe footprint made by the third and the forth digits was about the same size and the same level as the posterior part of the footprintmade by the second and the fifth digits. This kind of footprint described in the present paper was left by primitive artiodactyls. At present, this field of investigation is lying fallow. Although most of the artiodactyls in Tunggur period left only two-toe footprint, four-toe footprint reflects a relatively early stage of evolution from four-toe to two-toe artiodactyls since the first appearance of artiodactyls in Early Eocene.