Proaulopora
Proaulopora is a Cambrian–Ordovician fossil genus of calcareous algae. It has been variously thought to belong to the green algae, red algae or cyanobacteria. It was originally established by the Russian paleontologist in 1937, for species known from the Lower Cambrian of the western Altai Mountains.
In some older classifications of fossil algae genera, Proaulopora is placed in the family Proauloporaceae in order Proauloporales. In 2020, the genus was assigned to the cyanobacteria order Nostocales.
Proaulopora resembles some species of the extant rivulariacean genus Dichothrix, and has also been compared with the genus Calothrix.
Species
The genus contains the following species:Proaulopora composita Korde, 1973Proaulopora crassa Korde, 1973Proaulopora extincta Korde, 1973Proaulopora glabra Krasnopeeva, 1937 Proaulopora longa Korde, 1973Proaulopora microspora Korde, 1973Proaulopora ordosia Liu, et al., 2020Proaulopora pachydermatica Liu, Wu, Yang & Riding, 2016Proaulopora rarissima Vologdin, 1937 Proaulopora recta Korde, 1973As Vologdinella K.B. Korde, the following additional species are listed on AlgaeBase:Vologdinella grandis Korde, 1973Vologdinella pulchra Korde, 1973
It is unknown whether the above species have been transferred to Proaulopora or have become synonyms.