河南淅川盆地的恐龙蛋

记述了河南淅川盆地10个地点发现的恐龙蛋化石计6种,分属于4个科6个属．其中新属1个、新种2个。新属、新种滔河扁圆蛋（Placoolithustaohensis）以其特有的壳单元分枝特征成为树枝蛋科的新型分子;另一新种渐川树枝蛋（Dendroolithusxichuanensis）与湖北安陆王店树枝蛋（D．wandianensis）性质相似,两者时代应彼此相当;含滔河扁圆蛋的马家村组下部应与其下含淅川树枝蛋的高沟组划归同一时段为宜,即晚白垩世早期;含副圆形蛋、椭圆形蛋、长形蛋、南雄蛋的马家村组中、上部和其上的寺沟组,时代应属晚白垩世中、晚期。     

FOSSIL LAGOMORPHS (MAMMALIA) FROM THE HETAOYUAN EOCENE OF XICHUAN, HENAN

<正> Among the fossil materials collected from the lower part of the Hetaoyuan Formation, exposed at Shipigou (namely Pishigou) of Xichuan County, Henan, are some specimens of the primitive lagomorphs. A left mandibular fragment of them was recovered by Lei, one of us, and is housed in the Yichang Institute of Geology and Mineral Resources, Ministry of Geology. Other isolated cheek teeth were got by means of screen-washing in the winter of 1984. In this paper these Eocene lagomorph fossils are described, and the homologies of the upper cheek tooth patterns of lagomorphs are discussed.     

河南淅川核桃园组的低等四足类动物群

<正> Since 1920's, abundant fossil mammals have been collected from the Middle Eocene Hetaoyuan Formation, Xichan, Henan Province. On the contrary, only two reptile remains from these continental deposits have been reported——a turtle, Sinohadrianus sichuanensis Ping, 1929, and a crocodile Pristichampsus aff. P. rollinati identified on the basis of several ziphodont teeth (Chow et al., 1973).     

FOSSIL TREE SHREWS FROM THE EOCENE HETAOYUAN FORMATION OF XICHUAN, HENAN

<正> Knowledge of definite fossil treeshrews is still restricted to several Miocene localities of Indo-Pakistan subcontinent and China (Chopra, Kaul and Vasishat, 1979; Chopra and Vasishat, 1979; Jacobs, 1980; Qiu Zhuding, 1986). Some Paleogene taxa which were considered closely related to, or members of TuPaiidae have been removed from this family. However, a few isolated teeth close to the extant Dendrogale in dental characters were collected from the Eocene Hetaoyuan Formation of the Liguanqiao Basin by means of screen-washing technique in 1986. The purpose of this paper is to report the material.     

河南淅川始新世核桃园组獏化石

这里记述了河南淅川核桃园组中五种獏化石:Breviodon minutus,Schlosseria hetaoyuanensissp.nov.,Deperetella sichuanensis,Teleolophus danjiangensis sp.nov.,Pachylophus xui gen.etsp.nov.,并认为其时代大体相当于伊尔丁曼哈阶。文中也对脊齿獏亚科的分化和Teleolophus与Deperetella两属系统关系作了一些探讨。     

湖北淅川盆地上白垩统蜥脚类幼年个体新材料

描述湖北郧县淅川盆地晚白垩世地层中产出的蜥脚类恐龙化石。标本不关联保存于马家村组中段灰绿色含钙泥质粉砂岩中,材料包括牙齿、脊椎和肢骨化石等。从愈合特征（如分离的椎体和椎弓）分析,这些化石至少由2个未成年个体组成。这些化石体现出的特征组合,如股骨近端外侧突出,近端外缘向内侧倾斜,荐前椎气腔构造发育,以及牙齿呈细长的棒状,表明湖北郧县马家村组地层发现的蜥脚类可归入巨龙形类中的多孔椎龙类或者更进步的类群。新材料的发现对于进一步了解中国乃至东亚地区白垩纪晚期的蜥脚类恐龙分布和演化具有一定的意义。