Tawuia

Tawuia is a millimetric disc-shaped macrofossil from the Neoproterozoic. It is considered to be synonymous with Chuaria and Longfengshania.^[1]

Tawuia describes a more sausage- or smile-shaped fossils; Chuaria refers to more discoial instances.

The fossils are often preserved as organic compressions. They are considered to represent microbial structures;^{[verification needed]} some authors consider them to be affiliated with the algae.^{[verification needed]}

Stratigraphically, they range from 1,630 million years ago^[2] to the late Ediacaran.^[3]

References

1. ^ "Trois classes de fossiles precambriens pour un meme taxon" (in French), Comptes Rendus Palevol 6 (503): 508, 2003, http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6X1G-4B4XBDC-H&_user=10&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=84eaf5dbbe5df501cb963e9082924368  edit
2. ^ Srivastava, P.; Bali, R. (2006). "Proterozoic carbonaceous remains from the Chorhat Sandstone: oldest fossils of the Vindhyan Supergroup, Central India". Geobios 39 (6): 873–878. doi:10.1016/j.geobios.2006.02.001.  edit
3. ^ Grazhdankin, D. V.; Nagovitsin, K. E.; Maslov, A. V. (2007). "Late Vendian Miaohe-type ecological assemblage of the east European platform". Doklady Earth Sciences 417: 1183–1187. Bibcode 2007DokES.417.1183G. doi:10.1134/S1028334X07080107.  edit