广西早泥盆世节甲鱼类及胴甲鱼类化石及华南早泥盆世脊椎动物生物地层对比

描述了早泥盆世的3个属种，其中节甲鱼类Yujiangolepisliujingensisgen．etsp.nov.采自广西六景，Buchanosteussp．及胴甲鱼类？Chuchinolepissp.采自广西玉林。该3件标本均产自海相地层中，与海相无脊椎动物化石共生。还讨论了华南区几个主要产脊椎动物化石（包括脊椎动物微体化石）剖面的生物地层对比。

EARLY DEVONIAN FISHES FROM CENTRAL AND SOUTHERN GUANGXI AND CORRELATION OF THE VERTEBRATE BIOSTRATIGRAPHY IN SOUTH CHINA

The new phlyctaeniid—Yujiangolepis liujingensis gen. et sp. nov. was collectedfrom the Nagaoling Fm. of Lower Devonian in Liujing, Hengxian County, CentralGuangxi. The section of the Devonian deposits in Liujing of Guangxi is a famousand standard section in South China (Hou, Wang et al., 1988; Kuang et al., 1988).The fossil fish is yielded at the bottom of the Nagaoling Fm. associated withinvertebrate brachiopods: Orientospirifer wangi, O. nakaolingensis; Conodonts:Eognathodus sulcata and corals, tenticulites ete. The fish fossils includedNakaolinaspis devonica, Asiaspis expansa, Antiquaisagittaspis cornuta, and someantiarches (Yunnanolepis) which occur in the grayish-green quartziferous siltstones. Theenvironment of this area is referred to the seashore (Wang, 1991, Kuang, 1988) andthe name of Asiaspis expansa-Asiacanthus multituberculatus palaeocommunity wasgiven (Wang, 1991).There are marine fish fossil-Buchanosteus sp. and? Chuchinolepis sp. found inthe Baijuntong Fm., Lower Devonian (Lochkovian) of Zhangmu, Yulin in southernGuangxi associatod with invertebrates: Quadrithyrina expansa, Spirifer supramarginalisete., i.e. in the interval zone between the Monograptus cf. uniformes-M. alquabiliaand M. hercynicus Zones. Therefore, the fish fossils in Lochkovian of Zhangmu inGuangxi can be correlated to the Lower Devonian vedebrates in other localities ofSouth China (Table 1), because ? Chuchinolepis sp. and Buchanosteus sp. are foundbetween the two graptolites zones and these two genera have been found in the LowerDevonian of Yunnan and Gulzhou Provinces, and other localities in South China.