我国发现世界上最古老的保存附肢的高肌虫

The Earliest Bradoriid with Well-preserved Appendages

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.