石油与天然气地质 ›› 1996, Vol. 17 ›› Issue (4): 337-342.doi: 10.11743/ogg19960414

• 论文 • 上一篇    下一篇

瓶筐石类的硬体构造及生物属性

刘秉理, 朱忠德, 姜衍文   

  1. 江汉石油学院, 湖北荆沙 434102
  • 收稿日期:1996-04-29 修回日期:1996-06-26 出版日期:1996-12-25 发布日期:2012-01-16
  • 基金资助:

    国家自然科学基金资助项目(49372116)成果

THE SKELETON STRUCTURE OF CALATHIIDS AND ITS BIOLOGICAL ATTRIBUTE

Liu Bingli, Zhu Zhongde, Jiang Yanwen   

  1. Jianghan Petroleum Institute, Jingsha, Hubei
  • Received:1996-04-29 Revised:1996-06-26 Online:1996-12-25 Published:2012-01-16

PDF (PC)

906

被引次数

5

摘要：

鄂西下奥陶统分乡组和红花园组产大量的Calathium化石,因其具有下列特征:(1)以锥状或角状、杯状为特征,生长方向为锥端朝下,开口端朝上;(2)具多孔的双层体壁及其间的环形壁间腔;(3)不存在中轴,而具有一开阔的中央腔,其功能大约相当于出水孔;(4)多具发达的根状或瘤状壁外构造,功能为锚固、缠绕或平衡。表明应是一种较低级的滤食性动物,可能与古杯动物有一定亲缘关系,不应将其归属藻类。

关键词: 瓶筐石类, 硬体构造, 生物属性, 生长方式, 滤食动物

Abstract:

A large number of Calathium specimens were collected from west Hubei. They are characterized by: 1. The organism is in the shapes of inverted cone, born or cup with the opensides upward and the closed tips anchored on the sea bed; 2. Porous double-wall and ring-likeintervallum of the organism constitutes a water circulatory system similar to that of Archaeocyathids and sponge; 3. The organism has no axis but has a broad central cavity which actsprobably as a cloacal 4. Most specimens possess foot-like or tumour-like outgrowth structures with anchoring,twining or balanching function. All these features indicate that the organism should be a kind of lower class animal of filter feeder with certain affinity to Archaeocyathids but should not be classified into algae.