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。     

山西垣曲原蹄犀(犀科,奇蹄目,哺乳纲)化石

火石坡是垣曲盆地近年来新发现的化石点,产有丰富的哺乳动物化石,多数已被报道(黄学诗等,1999;Zhang et al.,2001;刘丽萍、黄学诗,2002;黄学诗、王景文,2002;Dawson et al.,2003;黄学诗,2004),本文仅对其中的奇蹄目原蹄犀类化石予以简单记述,它的发现为垣曲盆地始新世动物群增加了新成员.     

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.     

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.     

FOSSIL LEAVES OF DENDROPANAX FROM EOCENE SEDIMENTS OF SOUTHEASTERN NORTH AMERICA

As part of a reinvestigation of the Eocene floras from southeastern North America, a leaf form similar to some that were formerly placed in the genus Aradia has been identified as Dendropanax. Studies of the fine venation and cuticular characters have been important in this identification. This is the first report of leaf material of the genus Dendropanax in the fossil record.     

河南淅川始新世核桃园组肉齿类和食肉类化石

这里记述了河南淅川核桃园组三种肉齿类: Propterodon sp., ? P. pishigouensis sp. nov.和 Sarkastodon henanensis sp. nov. 讨论了小孑鬣兽 (Prolaena parva Xu et al.) 的分类位置,并记述了卢氏细齿兽 (Miaeis lushiensis Chow) 的新增材料.     

A STUDY OF LEAF COMPRESSIONS OF KNIGHTIOPHYLLUM FROM EOCENE DEPOSITS OF SOUTHEASTERN NORTH AMERICA

A study was made of the gross morphological characters and cuticular features of several fossil leaves of Knightiophyllum wilcoxianum Berry. These fossil leaves were collected from Eocene deposits exposed in three clay pits in western Tennessee. This investigation refutes the relationship of Knightiophyllum wilcoxianum to the modern genus Knightia and the family Proteaceae as suggested by E. W. Berry.     

秦岭东段李官桥盆地始新世哺乳动物化石新材料

李官桥盆地是始新世地层发育较全、哺乳动物化石丰富的盆地。本文报道了该盆地两个始新世化石新地点,哺乳动物共计4目7属8种。其中有5个新种,分别为Kuanchuanius? danjiangensis sp. nov.、Asiocoryphodon progressivus sp. nov.、Gobiatherium minutunz sp. nov.、Lophialetes? primus sp. nov.、Eomoropus? zhanggouensis sp. nov.。动物群的时代可能为中始新世早期。     

AMYNODONTS FROM THE UPPER EOCENE OF HONAN AND SHANSI

Eocene amynodonts,including one new genus and five new species,are described inthe present notes.The material investigated are for the most part upper cheek teeth rows,and were mostly collected during the past decade by the writers and their associates ofthe Institute (IVPP) from the various Upper Eocene localities in Honan (Lushi,Chi-yuan and Mienchih) and Shansi (Yuanchü).Many amynodont remains from the Upper Eocene and Lower Oligocene of China and     

FOSSIL VERTEBRATES FROM THE MIOCENE OF NORTHERN KIANGSU

In this paper some vertebrate fossils collected from the Miocene at Puchen,Nan-king and at Hsiachaohwan,Shihung County,both in northern Kiangsu,are described;and the age of the localities as well as that of the “Hsiachaohwan fauna”are dis-cussed.1.The Puchen faunaThe fossils were found when siliceous sands were quarryed from a small hill at Pu-chen,a town in the Nanking district,some 8 kilometers on the northern bank of the     

河南淅川早始新世一新原鸟

河南淅川这一新原鸟类化石,根据如下特征:胫跗骨外关节髁的外边缘超过胫跗骨的外边缘、内外两髁间成一“V”字形沟、内关节髁的内面具一近似“T”字形隆凸,骨质腱桥上边缘外斜、下边缘内斜,腱桥靠近胫跗骨内缘等,订一新属种:淅川中原鸟。中原鸟的时代为早始新世,它代表到目前为止我国时代最早和巨型鸟类——不飞鸟目的唯一材料。     

A LEAFCUTTER BEE TRACE FOSSIL FROM THE MIDDLE EOCENE OF PATAGONIA, ARGENTINA, AND A REVIEW OF MEGACHILID (HYMENOPTERA) ICHNOLOGY

Abstract:  The ichnospecies Phagophytichnus pseudocircus isp. nov. is described to include trace fossils characterized by leaf-margin excisions showing eccentricity values of 0.35–0.65 and more than 270 degrees of an arc, a non cuspate margin and vein stringers or necrotic flaps of tissue along the margin. A method for determining ellipse eccentricity was performed on leaf discs obtained from the nests of the modern leafcutter bee Megachile rotundata (Hymenoptera: Megachilidae), which provided objectively obtained values comparable to the trace fossil from the middle Eocene of Argentina and other world-wide ichnological records, historically and subjectively considered to be 'circular' trace fossils and attributed to leafcutter bees. The material described herein represents the first evidence for fossil Megachilidae from the Southern Hemisphere.     

新疆布尔津地区晚始新世哺乳动物化石的发现及其意义(英文)

1995年以来作者等人在新疆准噶尔盆地北缘乌伦古河地区开展了第三纪哺乳动物地层研究工作。在调查研究该区乌伦古河组地层同时 (叶捷等 ,2 0 0 1a ,b) ,为搞清乌伦古河组的区域分布 ,我们在 1 999年和 2 0 0 1年先后两次前往布尔津地区考察了那里的“乌伦古河组”。在布尔津县城西北 1 4km处额尔齐斯河北岸的一片新生代露头 ,长期被视为乌伦古河组 ,因而时代也被定为始新世至渐新世 ,但一直没有确凿的化石依据。 1 999年我们首次在该套地层中采集到哺乳动物化石 ( 990 2 7地点 ) ,2 0 0 1年再次在同一地点、同一层位采集到化石并实测了地层剖面。布尔津的该乌伦古河组地层可大致分为两段 ,下段为富含铁质的砂岩与泥岩互层 ,上段为浅灰绿色砂岩与杂色泥岩互层 ,整套地层的风化表面呈黄棕色。在乌伦古河组建组的乌伦古河流域 ,乌伦古河组则由一套浅灰绿色砂岩与棕灰色含砂泥岩构成 ,整套地层风化表面呈灰白色 (叶捷等 ,2 0 0 1a)。两个地区的乌伦古河组的岩性显然是不同的。野外追索证明 ,这两个地区的两套不同岩性的地层是两个不同沉积盆地的堆积物 ,这两个盆地在乌伦古湖附近 (E87°1 2′)被一由古生代地层构成的山岭隔开。作为地质体 ,这两套地层间没有联系 ,不应当归为同一岩石地层单位。因此 ,布尔津     

河南明港—始新世鸟类形态观察

本文记述了一发现于河南明港始新世较小型涉禽类的尺骨和胫跗骨远端化石。依据尺骨远端腱凹窄而浅,桡骨凹大,外侧具一纵沟和胫跗骨外关节髁外侧面中央有一窄纵嵴等特征定一新属种:张沟明港鹮Minggangiachanggouensis gen.et sp.nov. 明港鹮的时代为晚始新世,它代表迄今为止我国发现的鹳形目最早的鸟类。     

A LEMUROID PRIMATE FROM THE EOCENE OF LANTIAN,SHENSI

From the Early Tertiary sandstones and clays underlain the Sinanthropus-bearingreddish clays at Chen-Chia-Ou,Lantian District,Shensi(Chang et al.,1964),some mam-malian fossils have recently been collected in a thin layer of intercating chocolate-coloredclays at two outcrops.One is in a ravine named Kongkouwan,from where a singlespecimen of mammalian upper jaw considered here as a new lemuroid primate has beenrecovered.The age of the Early Tertiary beds of the Lantian District,which consist of whitesandstones,buff sands and sandy clays,is not yet precisely known;but the fossil bearinghorizon may be regarded as Late Eocene on basis of the fossil primate noted here.