The Systematic Significance of Body Wall Formation During the Metamorphosis of Gymnolaemate Bryozoans

苔藓虫是集群无脊椎动物与丰富的化石记录 可以追溯到五亿年前 他们的分类有 传统上是基于成年人的形态， 殖民地和新的个人起源的方式， 在殖民地内生长。 首席研究员里德研究了 几个现代物种的胚胎发育 ”张云生说，“证据确凿。 分类. 他打算研究 代表8个不同科和2个目的物种，以及 将所得分类与基于 传统的字符。 拟议的工作将提供急需的深入了解， 苔藓虫之间更高层次的进化关系， 提供一种评估当前分类的方法。 的 拟议的项目也将作为弥合差距的模式 无脊椎动物胚胎学和系统学之间的联系

Bryozoa are colonial invertebrates with a rich fossil record extending back 500 million years. Their classification has traditionally been based on the morphology of adults within the colony and on the ways in which new individuals originate and grow within the colony. Principal Investigator Reed has studied the embryological development of several modern species of byrozoa, and has found evidence that disputes the accepted classification. He proposes to investigate the embryology of species representing eight different families and two orders, and compare the resulting classification with that based on traditional characters. The proposed work would provide much-needed insight into the higher-level evolutionary relationships among bryozoa, and would provide a means of evaluating the current classification. The proposed project would also serve as a model for bridging the gap between invertebrate embryology and systematics.