Test arched in cross section, greatest height at apical disc. Anterior region of test very inflated. Paired petals ... [details]
Apical disc monobasal with 4 gonopores. Petals with equal columns of respiratory podia. Ambulacral plates beyond ... [details]
Named after Briareus, the Greek God of violent sea storms, in reference to the turbulent taxonomic history related ... [details]
Named after Cassandra of Troy, depicted in the myth of Hecuba and Priam’s family as the odd sibling. Kassandrina ... [details]
Late Oligocene–Early Miocene [details]
Feminine [details]
Neotype choice. In the absence of specimens from the type locality, we chose an adult specimen from one of the few ... [details]
Point Addis Limestone [details]
Possible syntypes: MNHN (Paris) IE-2013-10590 [previously numbered EcEs 5040]: fragments of at least 2 individuals. [details]