On the miocene centracanthidae (Teleostei, Perciformes) from the eastern Paratethys

A new genus, Naslavcea, is erected for the Middle Miocene species Spicara fundata Bannikov, 1990 (Centracanthidae) from the Lower Sarmatian of northern Moldova. This genus is characterized by the relatively small number of rays in the dorsal and anal fins. At the same time, Pelates islamdagicus Prokofiev, 2001 from the Lower Miocene of the Apsheron Peninsula (Azerbaijan) is transferred from the family Terapontidae to Centracanthidae and referred to the genus Spicara.     

内蒙古地区中新世木化石及古气候意义

木化石采自内蒙古赤峰平庄煤矿。矿区内展布的地层有两套,下部为晚中生代含煤地层,上部为第三系。木化石打自上部第三系,同层具有丰富的叶部化石。现报道的木材化石共３种,平庄原始黄杉型木Ｐｓｅｕｄｏｔｓｕｇａｘｙｌｏｎ ｐｉｎｇｚｈａｎｇｅｎｓｉｓ ｓｐ．ｎｏｖ．,东北云杉木Ｐｉｃｅａｘｙｌｏｎ ｍａｎｃｈｕｒｉｃｕｍ Ｓｚｅ和松型木Ｐｉｎｕｘｙｌｏｎ ｓｐ．等。其中的原始黄杉型木的最近亲缘属黄杉属。就生     

陕西彬县晚中新世猪类化石

本文记述了陕西彬县发现的晚中新世哺乳动物群中的猪类化石,共两属两种.双齿尖河猪 (Dicoryphochoerus binxianensis),为—新种其性质较印度 Chinji 组的 D. chisholmi 进步,而比我国蓝田组的 D. medius 又略显得原始;弓颌猪 (Chleuastochoerus stehlini) 是我国特有的一个属种,是北方三趾马动物群中的成员.     

Morphogenesis of rissoidae in the inland basins of the Eastern Paratethys

Miocene rissoids from the heterochronous low-salinity seas of the Eastern Paratethys (Early Chokrakian, Karaganian, Late Konkian, Early Sarmatian, and Early Maeotian) were revised. The polyphyletic genus Mohrensternia is subdivided into several generic and subgeneric taxa. The new genus Zhgentia and the new subgenera Rissoa (Turboellina), R. (Pseudoturboellina), and R. (Maeotia) are established.     

被子植物的花化石研究

五十多年前胡骕在研究山东临朐县山旺组的植物化石中,发现有花的化石,仅保存了5个花瓣或仅5个萼片,均难给予确切的分类位置;六十年代我们两次去山旺野外工作,发现为数较多,同样仅保存花瓣或萼片的化石。本文研究的是80年代发现并保存较为完好的花化石。新近李凤麟详细论述了各门类化石,均认为山旺组的地质时代属中中新世。近十余年来,国际上被子植物的花化石的研究进展较快。每次花化石的发现,对研究被子植物种系发生、系统位置及在地史中的演化及演变速率等均是极重要     

Late miocene ostracodes (Ostracoda,Crustacea) from the Enikal Strait (Eastern Paratethys) as indicators of salinity changes

The species composition of ostracodes from the upper Maeotian and lower Pontian deposits of the Kerch-Taman Depression (Enikal Strait, Eastern Paratethys) is reported. The sedimentological and paleoenvironmental study shows that mass ostracode occurrences were controlled by hydrological changes in the Late Miocene brackish-water basins under consideration.     

Coral microbialite environment in a Middle Miocene reef of Hungary

The presence of microbial crusts (microbialites) is reported here for the first time from a Middle Miocene (Badenian) coral reef in Hungary. The succession of initiation and development of the microbial crusts is described in relation to the reef architecture. The main features of the palaeoenvironment are discussed, with focus on the associated invertebrate faunas, mostly corals, molluscs, bryozoans, and crabs. We conclude that the microbial crusts developed under normal marine conditions and were a significant contributor to reef framework development, including its strengthening through calcification of the microbial organisms. Microbialites are anticipated in other Early and Middle Miocene coral reef occurrences of the Mediterranean–Paratethys realm, and to date may have simply escaped positive recognition.     

Paratethyan Ostracod immigrants in Italy during the Late Miocene

In this paper the ostracod assemblages recovered from several brackish Late Miocene Italian deposits have been analysed from a palaeobiogeographical perspective. During late Tortonian-early Messinian it is possible to recognize in Italy rich ostracod assemblages characterized by a wide contingent of taxa with central European or Mediterranean affinity, while only few brackish and freshwater ostracods show Paratethyan affinity. The recognized composition of the ostracod assemblages matches the palaeogeographic setting of the palaeo-Mediterranean/Paratethys at that moment. In fact during late Tortonian-early Messinian the palaeo-Mediterranean and Paratethysian domains were divided and, even if the connection via the present Marmara Sea-Strimon Basin was still open, the different salinity between them represented an ecological barrier, preventing faunal exchanges. Since normal aquatic migration was impossible, it must be assumed that the Paratethyan-like taxa entered the palaeo-Mediterranean area via passive dispersal by aquatic birds. On the contrary, the ostracod assemblages from the Italian Lago-Mare deposits show the absolute predominance of Paratethyan taxa, which, according to the known palaeogeographic setting during the late Messinian Lago-Mare event, could actively migrate from the Paratethys domain, colonizing the palaeo-Mediterranean, whose endemic fauna was severely impoverished by the Messinian salinity crisis and the following water dilution.     

山东临朐雉类化石的新材料

本文记述了山东临朐山旺组中出产的几件鸟类化石的新材料。从标本保存的骨骼特征看,这些化石应属一个个体,且与山旺组中先前出产的雉科鸟类——山旺山东鸟(shandongornis shanwanensis Yeh)近似,但又不完全一样,被鉴定为似山旺山东鸟(Shandongornis cf. shanwanensis Yeh).     

Fossil woods from Janggi Group (Early Miocene) in Pohang Basin,Korea

Sixty-four silicified fossil woods were collected from the Early Miocene Upper Coal-bearing Formation of Janggi Group in Pohang City, the Korean Peninsula. Out of them 23 specimens were identified as gymnosperms and 27 specimens as dicotyledons. The taxa identified include Picea palaeomaximowiczii Watari, Taxodioxylon cunninghamioides (Watari) Watari, T. sequoianum (Merckl.) Gothan, Fagus hondoensis (Watari) Watari, Cercidiphyllum sp., Camellia japonoxyla Suzuki et Terada, Distylium chiharu-hirayae Suzuki et Terada, Aesculus sp., Wataria miocenica (Watari) Terada et Suzuki and W. parvipora Terada et Suzuki. All of these species are reported for the first time from the Tertiary basins of Korea. Compared with those of the Miocene Formations in Japan, most taxa we found are common between the paleo-floras in Korea and Japan during the Early to Middle Miocene.     

山东山旺中新世硅藻及其环境的模糊数学聚类分析

本文侧重于山东山旺中新世硅藻盆地的古环境分析。笔者从平面上和剖面上分别采集并分析了硅藻土样品,根据样品中硅藻植物化石的分布,综合分析了剖面 No.1、No.4、No.5的化石组合。采用了模糊数学聚类分析法,直观地显示出浮游型 Melosira 组合和底栖附生型 Cymbella-Fragilaria 组合在时间和空间上的演变,进一步反映山旺湖盆湖水的深浅及湖盆范围之变化。对具有颜色深浅不同所显示水平纹层的硅藻土作了微层分析,结合电镜扫描及氧同位素值的证据,认为此硅藻土的深浅纹层为季纹层。     

The deciduous dentition of Griphopithecus alpani from Paşalar, Turkey

Seventy-four hominoid primary teeth have been recovered from the middle Miocene site of Pa?alar, Turkey, constituting the largest sample of deciduous teeth for any species of fossil ape. Morphological features that characterize the permanent teeth of Griphopithecus alpani from the site have also been identified in some of these deciduous teeth, including a lingual pillar on the di(1)s. These features plus the overwhelming preponderance of G. alpani permanent teeth at the site suggest that all of the deciduous teeth belong to this species. Contrary to the situation in the permanent teeth, nothing in the morphology of the primary dentition suggests the representation of a second species. The age profile of the non-adult hominoids was reconstructed based on the degree and type of wear recorded on the dp4s, the most abundant deciduous tooth in the sample, assuming a similar eruption chronology to that of Pan troglodytes. This analysis indicates underrepresentation of very young individuals in the sample and high mortality for individuals belonging to the 3-5-years age cohort, a situation that could be due to the effects of stress related to weaning. The coefficient of variation and range-index values obtained for the majority of tooth types are equal to or greater than the comparable values in a sample of P. troglodytes, in some cases at much smaller sample sizes. One possible explanation for this is that there was greater sexual dimorphism in the G. alpani deciduous dentition than in Pan, which would mirror the condition of the permanent dentition.