Chlorophyceae is a class of chlorophytes. There are 825 species of Chlorophyceae, in 220 genera and 41 families. This class has been around since the neoproterozoic era. They are sessile organisms.
Definition: The number of fossil occurrences in the Paleobiology Database (https://paleobiodb.org) that are identified as belonging to a particular taxon or any of its subtaxa.
Definition: This organism produces this material or substance, either during its life or after death. A produces B if some process that occurs in A has output B.
Definition: A group of species that exploit the same food resources, and/or use the same feeding or foraging methods. http://en.wikipedia.org/wiki/Guild_(ecology)
