论文部分内容阅读
具实轴型中柱的皱纹珊瑚的分类位置至今尚未取得统一。这类珊瑚的轴部由纤状组织构成，它不同于复中柱或皱形复中柱，它的形成与主隔壁、对隔壁或一级隔壁内端没有关系，是皱纹珊瑚中一类独立发育的轴部构造。具实轴型中柱的珊瑚可以独立建立新目，称Ｃｙａｔｈａｘｏｎｉｄａｏｒｄ．ｎｏｖ．。按照组成实轴的纤状组织类型和实轴形态，可以划分为３科，即ＣｙａｔｈａｘｏｎｉｄａｅＥｄｗａｒｄｓｅｔＨａｉｍｅ，１８５０，ＡｍｙｇｄａｌｏｐｈｙｌｉｄａｅＧｒａｂａｕ，１９３５，ＥｋｖａｓｏｐｈｙｌｉｄａｅＨｉｌ，１９８１。对其中３属５种和１未定种（包括１新属４新种）进行了描述。这些属种均产于下石炭统大塘阶。
The classification of wrinkled corals with real axis-type columns has not yet been unified. This kind of coral axis consists of fibrous tissue, which is different from the complex center column or corrugated complex column, its formation and the main wall, the wall or the inner wall of the primary end has nothing to do, is an independent Development of the shaft structure. Coral with a real axis-type column can independently establish a new head, called Cy anatomixidae. nov . According to the type of solid fibrous structures and real axis patterns that make up the real axis, they can be divided into three families, namely Cyathax-onidae Edward set Haime, 1850, Amygdalophylidae Grabau, 1935, EkvasophylidaeHil, 1981. Five species of 3 genera and 1 species of undetermined species (including 1 new genus and 4 new species) were described. These genera are produced in the Lower Carboniferous Datang order.