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 fossil; Chuaria refers to more discoial instances.

The fossils are often preserved as organic compressions. They are considered to represent microbial structures; some authors consider them to be affiliated with the algae.

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

References

  1. ↑ Teyssèdre, B. (2003), "Trois classes de fossiles precambriens pour un meme taxon", Comptes Rendus Palevol (in French) 6 (503): 508–510, doi:10.1016/j.crpv.2003.09.023
  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.
  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.