Can the term Turf Algae be subdivided into a new subdivision, such as Nano-Turf Algae for calcareous bethonic algal forms less than 50µm in size?

I am doing research on algae from the Upper Cretaceous of Colombia, South America.  The algae I am working with is approximately 5 to 30 µm in size.  The individuals have a well defined "head" or...

14 February 2015 3,155 3 View