| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4687772 | Journal of China University of Geosciences | 2008 | 7 Pages |
Abstract
In South China, various megascopic symmetrical metazoan fossils were found in the upper Doushantuo Formation of the Neoproterozoic Ediacaran. The worm-like fossil is characterized by modern taxological annelid, for many metameres, parapodia, one possible tentale, an alimentary canal, and a dorsal vessel. The triradiate discoidal fossils belong to Trilobozoa, and the octaradiate discoidal fossil might be Ctenophora. All these fossils indicate that the megascopic metazoans have appeared in the Doushantuoian of Eidacaran and imply that the symmetrical metazoans must have originated at least 550 Ma ago.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Earth-Surface Processes
Authors
Wang Yue, Wang Xunlian, Huang Yuming,