藏北发现的大型猫科动物脑化石

本文主要报道采自西藏(Xizang)北部,伦波拉盆地南缘,色林错东南岸的一块大型猫科(Felidae)动物的脑化石。因为没有发现任何与其共生的哺乳动物化石,其时代只能依据猫科动物中虎豹属(Panthera)的生活时代,定为上新世至更新世(Pliocene-Pleistocene)。本文可能是中国哺乳动物脑化石的首次研究报道。     

云南呈贡三家村晚更新世小哺乳动物群

本文简单描述和对比了华南地区迄今发现种类最多的一个更新世小哺乳动物群(计4目12科27属34种),为云贵高原自更新世晚期以来的抬升及气候变化提供了证据。     

新疆二叠纪西蒙螈类化石

本文记述了西蒙螈类一新属——乌鲁木齐鲵,这是我国首次发现的完好的迷齿两栖类化石。     

山东山旺新发现的大型熊类化石

本文记述了山东山旺的三种大型熊类化石: Hymicyon (Phoberocyon) youngi, Thaumastocyoninae gen. et sp. n. (unnamed) 和 Amphicyon cf. confucianus.前两类是最近新发现的.在进化水平上,它们和欧洲及北美中中新世早期的同类动物相近.后一种仅以一枚 M_3 为代表,该材料可能是三十年代采集而未被研究的.如果我们对 Hemicyon (Phoberocyon) youngi (Chen), 1981 的看法和鉴定无误的话,那么种型化石的产地,即湖北钟祥的地质时代,应比原来想象的要早,可能与山旺的时代接近,即柜当于欧洲的 MN4 或 MN5.     

盔甲鱼类的侧线系统

本文对盔甲鱼类的侧线系统作了系统的描述;盔甲鱼类与异甲鱼类、骨甲鱼类和七鳃鳗在侧线系统方面可作相近的对比;盔甲鱼类众多的横行感觉管暗示在原始脊椎动物里,横行感觉管按节排列、由前而后分布整个头区;在盔甲鱼类中侧线系统存在多鳃鱼型和真盔甲鱼型,两者的分化至迟在早志留世已经完成.     

ON THE SYSTEMATIC POSITION OF PROSCIURUS LOHICULUS

The species Prosciurus lohiculus was erected by Matthew & Granger (1923), based on an upper jaw from Hsanda Gol Formation (Middle Oligocene), Mongolia. Later, Argyropulo (1939) described a lower jaw from the upper Oligocene of Kazakhstan, USSR, which was identified as Prosciurus sp. (lohiculus). Stehlin & Schaub (1951, p. 278) thought that the Kazakhstan lower jaw described by Argyropulo should belong to Plesispermophilus, leaving the holotype of P. lohiculus from Hsanda Gol Formation still in Prosciurus. Wood (1962, p. 236) transferred P. lohiculus into Plesispermophilus on the assumption that the Kazakhstan lower jaw belongs to the same form as the holotype from Hsanda Gol. Wood's opinion was followed by Mellett (1968, p. 6) and Shevyreva (1976, p. 22). Meanwhile, Kowalski (1974, p. 153) described several lower jaws, new material from the type locality, and believed they belongs to Prosciurus lohiculus and came to the conclusion that the Kazakhstan lower jaw was morphologically quite different from those he found in Tatal Gol, and hence could not belong to the species in question. Schmidt-Kittler and Vianey-Liaud (1979; p. 73) agreed with Kowalski and gave further evidence that the upper teeth of true Plesispermophilus was also different from those of P. lohiculus and that the lower jaw from Kazakhstan might well be of Plesispermophilus. Irrespective of these disagreements, all the authors consented to include P. lohiculus in Prosciurinae (Aplodontidae).     

广西盔甲鱼类化石

本文记述了产自广西泥盆系的两件盔甲鱼类标本,其一为 Tridensaspis magnoculus gen.et sp. nov., 代表了盔甲鱼目中的一个新科;另一为盔甲鱼属中一个新种 Eugaleaspis lianhuashanensis sp. nov. 文中结合前人对盔甲鱼类化石的记述资料,对盔甲鱼类的系统关系作了初步的分支分析,以期加深我们对盔甲鱼类系统关系的认识,使现有的盔甲鱼类化石资料,能为生物地理学分析中的分支-替代方法所应用.     

江西晚古新世南方有蹄目一新属及其有关问题讨论

本文主要记述了南方有蹄目北柱兽科一新属新种——南方沟柱兽 (Bothriostylops notios gen. et sp. nov.).化石发现于江西池江盆地晚古新世池江组.新属牙齿形态与其他已记述的北柱兽科种类均有一定的差别,但与稀少亚洲柱兽 (Asiostylops spanios) 和原"中华柱兽"进步种 ("Sinostylops" progressus) 在系统关系上比较密切.本文初步讨论了"中华柱兽"属中有关种的分类和归属问题.     

似卞氏兽(三列齿类爬行动物)新材料

本文记述了四川下沙溪庙组发现的三列齿类新材料,归入似卞氏兽属,建立—新种,自贡种.新材料首次揭示了该类动物的鼻腔构造.     

A NEW GENUS OF HIODONTIDAE FROM LUOZIGOU BASIN, EAST JILIN

<正> Manchurichthys (Saito, 1936) has been, for a long time, the only representative of fossil vertebrate known from the Oil-bearing member of Dalazi Formation, Luozigou Basin, East Jilin. Since 1978, some new materials have been collected there by the Regional Geological Brigade of Jilin Province and the present author. Two more forms of fossil fishes are not known to occur in the rocks of this section. One is Sinarnia luozigouensis (Li, 1984) which is referred to Amiiformes; the other, Yanbiania (gen. nov.), is described in this paper and included in the osteoglossomorphan family Hiodontidae.