新疆准噶尔盆地三个泉地区几种始新世哺乳类

本文记述了准噶尔盆地北缘三个泉地区依希白拉组中采到的踝节类、蹠行类、全齿类和恐角类化石。根据这些化石,依希白拉组的时代可能和北美中始新世勃力吉期相当。文内,通过文献分析,认为周明镇和胡长康(1956)记述的真恐角兽的前臼齿可能产自三个泉附近的依希白拉组。     

记山东曲阜中始新世晚期一雷兽新属种

描述了产自山东曲阜黄庄动物群－－雷新材料,周氏曲阜雷兽（新属、新种）Ｑｕｆｕｔｉｔａｎ ｚｈｏｕｉ ｇｅｎ ｅｔ ｓｐ．ｎｏｖ．,该材料是山东人首次确定的雷兽属种报道,它与Ｍｅｔａｔｅｌｍａｔｈｅｒｉｕｍ属相似但较之进步,早已知后沼雷兽亚科,在沙拉木仑期的唯一代表,与中国沙拉木仑期特有的鼻雷属差别交大。     

记山东曲阜中始新世晚期─雷兽新属种

描述了产自山东曲阜黄庄动物群-雷兽新材料：周氏曲阜雷兽（新属、新种）Qufutitanzhouigen．etspnov。该材料是山东省内首次确定的需兽属种报道,它与Metatelmatherium属相似但较之进步,是已知后沼雷兽亚科（Metatelmatheriinae）在沙拉木仑期的唯一代表,与中国沙拉木仑期特有的鼻雷兽属（Rhinotitan）差别较大。     

中始新世角形类一新属

本文记述了发现于山东省莱芜县官庄组的角形类化石—新属——沂蒙兽 Yimengia, 并将以往发现应移归这一属的标本作了陈述性说明.据以前的发现报道表明,该属化石地理分布广,地史分布窄.在我国已知的中始新世所有化石地点几乎都找到了这一属的化石.但是,在中始新统以外的地层中却没发现过这一属的化石.     

山西垣曲中始新世中期仓鼠化石

记述了在垣曲盆地郭家村火石坡地点发现的仓鼠类一新种和一个相似种———垣曲古亚鼠 (Palasiomysyuanquensissp .nov.)和垣曲古亚鼠相似种 (Palasiomyscf.P .yuanquensis )。新种以上臼齿前小尖不明显、m1下前边尖与下原尖相连、个体大等特点区别于属型种锥齿古亚鼠 (P .conulus)。古亚鼠化石在火石坡的发现为垣曲盆地可能存在中始新世伊尔丁曼哈期地层提供了又一证据。     

云南路南中始新世雷兽化石

雷兽是一类生活在古近纪始新世的奇蹄类哺乳动物,化石主要发现在古北区的亚洲和北美。我国雷兽化石丰富,尤以在内蒙古地区发现居多。1943年Granger和Qegory根据在内蒙古找到的数量可观的完好材料(包括37个头骨和70件下颌骨在内的141件标本),对我国的雷兽化石做了较为全面和系统的整理和研究,划分出3个亚科、14个属和     

山东曲阜晚始新世黄庄动物群

本文记述了一个在山东地区首次发现的晚始新世动物群——黄庄动物群。填补了山东晚始新世地层上的空白,描述了四个新种。     

山东五图早始新世更猴科(Plesiadapidae,Mammalia)化石

记述了山东五图盆地早始新世五图组的一种更猴类 (plesiadapid)化石 :杨氏亚洲更猴(Asioplesiadapisyoungigen .etsp .nov .)。在它增大的下门齿上具有更猴科特有的下缘尖和下缘脊 ,但其下颊齿性状相当原始 ,p4跟座呈盆状 ,m3下次小尖呈锥状更类似白垩纪晚期出现的更猴形动物Purgatorius。Asioplesiadapis的下臼齿形态可以说明亚洲更猴类虽然有北美和欧洲更猴的某些典型特征 ,但并不在同一进化支系。因此 ,另立一新亚科———亚洲更猴亚科(Asioplesiadapinaesubf.nov.)。     

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。     

A NEW GENUS OF CERATOMORPHS (MAMMALIA) FROM MIDDLE EOCENE OF CHINA

<正> Class Mammalia Linnaeus, 1758Order Perissodactyla Owen, 1848Suborder Ceratomorpha Wood, 1937Family ?Hyracodontidae Cope, 1879Genus Yimengia gen. nov.     

Additional cricetid and dipodid rodent material from the Erden Obo section,Erlian Basin (Nei Mongol,China) and its biochronological implications

New cricetid (Cricetops dormitor, Eocricetodon sp., Eucricetodon cf. E. wangae, Pappocricetodon schaubi) and dipodid (Allosminthus gobiensis n. sp., Allosminthus ernos, Allosminthus uniconjugatus, Allosminthus cf. A. majusculus, Primisminthus shanghenus, Sinosminthus sp.) occurrences from the “Lower Red”, “Middle Red”, “Middle White” and “Upper White” beds of the Erden Obo section in Nei Mongol, China are reported. They are first discovered in these horizons. On the basis of the comparison of the rodent assemblages, we consider that the age of the “Upper White” beds is early Oligocene, the age of the “Middle Red” and “Middle White” beds is probable more similar to the age of late Eocene Houldjin Formation and lower part of Chaijiachong Formation, and the age of the “Lower Red” beds is correlative to the Sharamurunian. The diversity of ctenodactyloid, dipodid, and cricetid appears to change, and the turnover in rodent fauna possibly responded to the environmental and climate change towards the end of middle Eocene.     

FOSSORIAL ADAPTATIONS OF A TAENIOLABIDOID MULTITUBERCULATE MAMMAL FROM THE EOCENE OF CHINA

<正> Fragments of the postcranial skeleton of s taeniolabidoid multituberculate,? Lambdopsalis bulla, from the Eocene of Chins are described. These consist of cervical vertebrae C2-C3 (fused), a fragment of the neural arch of C4, and complete C5-C7, thoracic vertebrae T1-T3, and two humeri, which are the first Complete multituberculate humeri ever described. The fusion of C2 and C3, and the stout structure of the humerus with a very large deltopectoral crest, a wide distal end, and prominent radial and ulnar condyles, indicate a fossorial mode of life for? L. bulla. These postcranial elements and a wide flattened, skull with a vertical occipital plate, suggest adaptstions seen in some modern golden moles and cricetid rodents such as Myospalax that dig with claws and displace the soil with the head.     

垣曲盆地新发现的始爪兽类化石

记述了在垣曲盆地始新世地层两个层位中发现的始爪兽科化石 3个种 ,其中包括 1个新种———周氏路南兽 (Lunaniazhouisp .nov .)。新种与属型种杨氏路南兽不同在于个体小、齿冠低、下前尖和下前脊及下斜脊更退化。     

The Shanghuang Mammalian Fauna, Middle Eocene of Jiangsu:History of Discovery and Significance

APaleogenemammalianfauna,herenamedtheShanghuangfauna,wasdiscoverednearthevillageofShanghuang,closetoLiyangCity,JiangsuProvince,China(Fig.1).Atpresent,rouglilysixtyspeciesoffossilmammalshavebeenrecogniedintheShanghuangfauna.Manyofthesemammaltaxaarenewtoscience,andothersrepresentnewoccurrencesfortheEoceneofChina.ParticularlywellrepresentedintheShanghuangfaunaaremicromammals(includingmarsupials,insectivores,rodents,lagomorphs,primates,andbats)thathaveseldomifeverbeenfoundinotherEoceneAsianl…