摘要
<正> 目前,全球已发现的高肌虫属种中,约2/3产于我国。实际上,我国高肌虫研究无论在广度上还是在深度上都居世界前列。然而,由于我国一直未发现最能反映生物本质属性的软躯体化石,使得高肌虫研究长期以来只能局限于其外部壳体,从而严重影响了高肌虫的生物学地位及其系统演化特征等基本问题的深入探讨。70年代末在瑞典晚寒武世(约5.1×10~8年前)瘤状灰岩中首次发现了高肌虫软躯体化石。
After the discovery of the Late and the Middle Cambrian soft-bodied bradoriid in Sweden and Australia respectively, the more significant bradoriid with well-preserved appendages has been recently found in the early Early Cambrian 'KIN' fauna (named after three predominant genera in this fauna-Kunmingella, Isoxys and Naraoia) in Chengjiang, Yunnan Province. What is the most interesting is that the unnamed univalved bradoriid possesses five pairs of non-articulated appendages, suggesting that it, like onychophorans, represents a primitive transitional form between annelids and crustacean arthropods.
出处
《西北大学学报（自然科学版）》
CAS
CSCD
1992年第1期103-104,共2页
Journal of Northwest University（Natural Science Edition）
基金
国家自然科学基金
关键词
高肌虫
中国
古生物
化石
寒武系
Earliest bradoriid
Well-preserved appendages
'KIN' fauna
Early Cambrian.
