Fossil Genera of Disputed Algal or Animal Identity

Fossil Genera of Disputed Algal or Animal Identity is a Browse By group of the Nature Atlas that gathers fossil genera whose published interpretation has moved between an alga and an invertebrate animal, such as Pycnoporidium, a genus thought to be a red or green alga until one of its species was treated as a synonym of the brachiopod genus Gosaukammerella, which left the interpretation of the remaining species uncertain. An entry belongs here when its own cited article states that the genus has been read both as a plant-like organism and as an animal. It excludes the fossil animal genera of settled identity, which have groups of their own by period or lineage. The group lets a reader see how a single fossil name can change kingdoms.