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标题：Late Paleozoic turrilepadid machaeridians from North America
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作者：RICFIARD D. HOARE ; ROYAL H. MAPES ; THOMAS E. YANCEY 等
期刊名称：Acta Palaeontologica Polonica
印刷版ISSN：0567-7920
电子版ISSN：1732-2421
出版年度：1996
卷号：41
期号：2
页码：127-145
语种：English
出版社：Institute of Paleobiology PAS
摘要：Turrilepadids are not uncommon in late Paleozoic shales being often associatedwith ostracodes,foraminifers,and minute molluscs. In North America they rangefrom the late Missippian (Chesterian) to early Permian (Leonardian). Sclerites ofthe inner scleritome row are more common than outer sclerites. Some clustershave been found. Sclerite consists of two layers with the thicker,lower layerpenetrated by a transverse tubular structures oriented perpendicular to thesclerite surface,which may represent canals related to the papillae on the innersurface of the sclerite. Turrilepas lepros sp. n.,T. trigoniodes sp. n.,T. asketos sp.n.,Clarkeolepis alloeospinosa sp. n.,and Ambonlepidos petalos gen. et sp. n. areproposed.
其他摘要：Machaeridia (pospolite we wczesnym paleozoiku organ:izrny o nieustalonych pokrewieristwach) z rzgdu Turrilepadida sq czgstsze w mlodszym paleozoiku,niZ siq dot4d spodziewano. W Ameryce Pln. wystEpujq od namuru (Chesterian) do wczesnego permu. Skleryty wew
关键词：Turrilepadidae;Machaeridia;Mississippian;Pennsylvanian;Permian.