| 四射珊瑚属Lophocarinophyllum的骨骼构造兼论Lophophyllidiidae科 |
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| 作者单位： | China University of Geosciences，Beijing 100083 |
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| 摘 要： | Lophocarinophyllum属以中轴粗大,隔壁两侧发育平列脊板,横列构造发育微弱为主要特征。骨骼微细构造属纤状及层纤状类型。隔壁和脊板可由单晶榍组成,也可由轴带不规则细小晶榍与两侧带近平行的晶针和晶束组成。由于Lophocarinophyllum acanthiseptum发育微弱横板,将Lophotabularia列为Lophocarinophyllum的同义名。Lophocarinophyllum共包含8个种,其中1个新种(L. stereoseptum sp.nov.). Lophophyllidiidae科有8个属: Lophophyllidium、Sugiyamaella、Lophocarinophyllum、Stereostylus、Neostereostylus、Timorphyllum、Lophamplexus、Paralophophyllidium.
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| 关 键 词： | Lophocarinophyllum Lophophyllidiidae 脊板 层纤状 晶针 晶榍 晶束 |
MICROSKELETAL STRUCTURES OF THE GENUS LOPHOCARINOPHYLLUM WITH A DISCUSSION ON THE FAMILY LOPHOPHYLLIDIIDAE |
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| Authors: | Wang Hongzhen Chen Jianqiang |
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| Abstract: | Among the family Lophophyllidiidae Moore et Jeffords 1945,Lophocarinophy-llum Grabau ( 1922) possesses well developed septal flanges. The microskeletal structures of the septa are either composed of distinct monacanth trabeculae with clearly radiating needles, or of an axial zone of irregular slender trabeculae with diverse needles and lateral zones with subparallel needles or tufts. The flanges have slender trabeculae in the axial zone and parallel needles in the lateral zones, but no regular trabeculae with radiating needles were observed. In several speci-mens of Lophocarinophyllum acanthiseptum collected from the Upper Carboniferous in the North China, weakly developed convex tabulae are present. Thus it may be held that the genotype is possessed of tabulae, and the genus Lophotabularia Shi, established on the presence of tabulae, may better be considered as a syno-nym of Lophocarinophyllum, So far 8 species of Lophocarinophyllum, L. acan-thiseptum Grabau,L. major Heritsch, L. yakovlevi Fomichev, L. karpinski Fo-michev, L. suetomi Minato, L. lophophyllidium Liao et Xu and L, abnome Shi, may be recognized, including the new species L. stereoseptum described herein. In our revised classification of the rugose corals ( Wang et al 1989 ) , 10 genera were assigned to Lophophyllidiidae, but Lophophyllum was tentatively included therein. Actually the latter genus ( genotype L. konincki ) is a monozonal coral of zaphrentoidid affinity probably akin to Claviphyllum and may therefore better be transferred to the family Bradyphyllidae under the Soborder Zaphrentitoidina. Thus the family Lophophyllidiidae includes 8 genera: Lophophyllidium Milne-Edwards et Haime, Sugiyamaella Yabe et Minato, Lophocarinophyllum Grabau, Stereostylus Jeffords, Neostereostylus Lin, Timorphyllum Gerth, Lophamplexus Moore et Jeffords and Paralophophyllidium Lin. |
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| Keywords: | Lophocarinophyllum Lophophyllidiidae flange fibro-lamellar needles tuft trabeculae |
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