What is "tawuia"

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

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 to the late Ediacaran.