†Priscogalea grumosa Aristova 1980

Aristova 1980. [Acritarchs of the border layers of the Tremadocian and Arenigian eras of the Moscow Sineclase.] Vsesoyuznyi Nauchno-Issledovatelskii Geologorazvedochnyi Neftyanoi Institut Trudy Instituta, No. 217 1980: 10-18