福建宁化早二叠世早期的小有孔虫动物群

本文报道的福建宁化湖村早二叠世时期与StaffellaTing共生的小有孔虫动物群,在福建地区还属首次发现。该动物群计有9属20种,称为Globivalvulina-Nodosaria组合。这一小有孔虫动物群的发现,不但为福建地区栖霞组底部补充了新的化石门类,且为石炭系二叠系的划分提供了新的依据。     

福建漳平早二叠世SchwagerinacushmaniTing类动物群

福建涧产早二叠世Ｓｈｗａｇｅｒｉｎａｃｕｓｈｍａｎｉ动物群的层位介于梁山组与含假瓦格Ｔｉｎｏｇ亚科分子的马平组之间。动物群分子以Ｓｈｗａｇｅｒｉｎｃｕｓｈｍａｎｉ,Ｄａｒｖａｓｉｔｅｓｓｉｎｅｎｓｉｓ,Ｐｓｅｕｄｏｆｕｓｕｌｉｎａｇａｌｌｏｗａｙｉ为主,与湘东南的ＳｃｈｗａｇｅｒｉｎａｃｕｓｈｍａｎｉＴｉｎｇ类群,江苏宁镇山区的ＤａｒｖａｓｉｔｅｓｏｒｄｉｎａｔｕｓＴｉｎｇ类群相一致。     

福建大田长兴组的小有孔虫动物群

首次报道福建省大田崆峒山晚二叠世晚期长兴组中,与Palaeofusulina筵类群共生的小有孔虫动物群,计有22属64种(包含1个新种,2个未定种),称Colaniella-Pachyphloia ovata组合。通过这一动物群的研究,不但为福建地区长兴组补充了新的化石门类,且为该组的时代归属又提供一佐证,对该地区长兴组中的灰岩层古生态特征也作了简要的探讨。     

福建漳平早二叠世Schwagerina cushmani筳类动物群

福建漳平早二叠世Ｓｃｈｗａｇｅｒｉｎａｃｕｓｈｍａｎｉ动物群的层位介于梁山组与含假希瓦格亚科分子的马平组之间。动物群分子以Ｓｃｈｗａｇｅｒｉｎａｃｕｓｈｍａｎｉ,Ｄａｒｖａｓｉｔｅｓｓｉｎｅｎｓｉｓ,Ｐｓｅｕｄｏｆｕｓｕｌｉｎａｇａｌｏｗａｙｉ为主,与湘东南的Ｓｃｈｗａｇｅｒｉｎａｃｕｓｈｍａｎｉ类群、江苏宁镇山区的Ｄａｒｖａｓｉｔｅｓｏｒｄｉｎａｔｕｓ类群相一致。     

福建武平中二叠统童子岩组的小有孔虫

本文首次报道福建武平地区中二叠统童子岩组中与复通道Ｔｉｎ（Ｐｏｌｙｄｉｅｘｏｄｉｎａ）群共生的小有孔虫动物群１８属４４种,其中新种３个,该动物群在国内很少报道。通过这一小有孔虫群的研究,为童子岩组的地层时代时属提供了又一佐证,对该地区童子岩组中的炭岩层古生态特征也作了简单的讨论。     

福建漳平栖霞组的Ting

福建漳平早二叠世栖霞组出露较完整,Ｔｉｎｇ类化石丰富,序列清楚,按岩性和化石群垂直分布,可分为３个岩性段和相应的３个Ｔｉｎｇ类化石带,自下而上为Ｍｉｓｅｌｌｉｎａ ｃｌａｕｄｉａｅ带,Ｐａｒａｆｕｓｕｌｉｎａ ｍｕｌｔｉｓｅｐｔａｔａ带和Ｃａｎｃｅｌｌｉｎａ ｐｒｅｉｍｉｇｅｎａ带,后一带在福建尚属首次发现。     

闽西晚石炭世晚期—早二叠世有孔虫动物群*

福建石炭、二叠纪有孔虫迄今未见报道。近年来,笔者对闽西船山组和栖霞组下部有孔虫动物群作了系统研究,鉴定116种,其中11新种。根据这些属种的地层分布规律,本文将其划分为5带,这不仅对石炭-二叠系界线的划分提供了有益材料,同时对研究该时期有孔虫动物群面貌也有重要意义。本文研究的标本均为我系历届毕业生及研究生所采集,化石鉴定曾得到曾学鲁教授、郑洪和洪祖寅老师的帮助,工作中得到骆金锭教授的指导,化石照片由解小健摄制,笔者在此一并致谢。     

福建漳平栖霞组的

福建漳平早二叠世栖霞组出露较完整,类化石丰富,序列清楚,按岩性和化石群垂直分布,可分为３个岩性段和相应的３个类化石带,自下而上为Ｍｉｓｅｌｉｎａｃｌａｕｄｉａｅ带,Ｐａｒａｆｕｓｕｌｉｎａｍｕｌｔｉｓｅｐｔａｔａ带和Ｃａｎｃｅｌｉｎａｐｒｅｉｍｉｇｅｎａ带,后一带在福建尚属首次发现。     

黔南紫云四大寨长兴期小有孔虫

首次报道了产自贵州紫云四大寨剖面长兴期的有孔虫动物群,共计有9属22种,将此动物群与华南长兴期其它地区的有孔虫动物群进行了对比。     

福建宁化晚石炭世有孔虫Pseudoendothyra动物群的发现及其意义

报道了福建宁化晚石炭世黄龙组下部白云岩中的Pseudoendothyra动物群,共描述鲢类化石1属21种,包括4个未定种。该动物群壳体微小,一般为扁圆形及凸镜形,轴率小于1,旋壁四层式,化石保存尚好,且具排它性分布。该动物群的发现丰富了筵类古生态学及其生物地层学研究领域的新资料。     

福建省漳平市野生观赏植物

福建漳平是中国十大花卉基地之一,独特的区位优势蕴含着丰富的野生观赏植物资源。2001~2003年的野外调查中发现漳平市有野生观赏植物90科1、91属3、14种。     

内蒙古乌达地区早二叠世晋囊蕨属一新种

通过扫描电镜研究,建立了内蒙古中部乌达地区下二叠统山西组晋囊蕨诉一个新种Ｃｈａｎｓｉｔｈｅｃａ ｗｕｄａｅｎｓｉｓ ｓｐ ．ｏｎｖ．。新种的小心片Ｓｐｈｅｎｏｐｔｅｒｉｓ型,囊群椭圆形,由４～１０个孢子囊组成,着生一示羽片背面,位于中脉的两侧。环带横列于孢子囊的上部,完全,单排细胞,细胞数目约为１８个,这些特征表明新种属于里白科。     

内蒙古乌达地区早二叠世晋囊蕨属一新种

Chansitheca (Sphenopteris) wudaensis sp. nov. is described based on the materials collected from the Lower Permian Shansi Formation of Wuda, Nei Mongol, China. The frond is small and at least two times pinnate. The pinnule is sphenopteroid. The sori are borne on the abaxial surface of the pinnule, arranged in two rows parallel to the midvein, elliptic,and composed of 4-10 round sporangia. The indusium is absent. The annulus is transverse and complete, and consists of about 18 thickened cells. The features of the fertile parts, sori, sporangia and annulus and the absence of indusium indicate that the new species belongs to the Gleicheniaceae.     

New seeds of gymnosperms from the Lower Permian of the Ural mountains

New taxa of detached seeds are described from the Kungurian (Lower Permian) of the Middle Cis-Urals: Laevigatospermum compressum gen. et sp. nov., Hirsutospermum paniculatum gen. et sp. nov., Rugosospermum callosum gen. et sp. nov., and Craspedosperma filiferum sp. nov. The systematic position of the new taxa is discussed.     

Amphibian swimming traces from the Lower Permian of southern New Mexico

Fossilised traces of swimming amphibians, assigned to Batrachichnus delicatulus and Serpentichnus robledoensis igen. et isp. nov., are described from the Lower Permian of the Robledo Mountains, southern New Mexico. The B. delicatulus specimen is interpreted as a trackway of a small 'amphibian' (temnospondyl, nectridean, microsaur or juvenile embolomere) swimming straight ahead. S. robledoensis consists of repeated pes imprints separated by discontinuous, L-shaped imprints (body traces). It is interpreted as a trackway of an 'amphibian' swimming in a similar manner to the motion of a side-winding snake. The producer of S. robledoensis is more distinctive than in B. delicatulus , and is suggestive of the lysorophian Brachydectes . This is the first locomotory trace to be assigned to this 'amphibian' group.     

New multiarmed crinoids of the family Catillocrinidae from the Lower Permian of the Fore-Urals

New Catillocrinidae Allocatillocrinus rarus sp. nov., with a previously unknown tegmenal structure, Paracatillocrinus shamovi sp. nov., and P. shakhtauensis sp. nov., with an unusual relative position of the crown and stem are described from the Artinskian Stage (Lower Permian) of the western slope of the Middle and Southern Ural Mountains (Boets, Krasnoufimsk, and Shakh-Tau localities). The genus Allocatillocrinus has not previously been recorded from the Permian, while Paracatillocrinus has only previously been reported from the Upper Permian of Timor Island.     

Middle Permian smaller foraminifers from the Maokou Formation at the Tieqiao section,Guangxi, South China

This paper documents smaller foraminifers from the Maokou Formation (Guadalupian) at the Tieqiao section in Laibin area, South China. The assemblage of smaller foraminifers reported herein consists of 69 species of 42 genera. Although the Maokou Formation of this section was deposited in a relatively deep-water environment, smaller foraminifers are diverse and abundant, especially in debris flow deposits and thin turbidite beds. This fauna bears most similarity with coeval foraminiferal assemblages from the other Palaeotethyan regions. There is a sharp decrease in the diversity and abundance of smaller foraminifers at the lithological boundary between the Maokou and Heshan formations. An overwhelming majority of genera of smaller foraminifers that occur in the Maokou Formation at this section can be found in the Lopingian strata of South China. The study of smaller foraminiferal fauna of the Guadalupian at the Tieqiao section indicates a much less pronounced effect of the pre-Lopingian crisis on smaller foraminifers.