Anderson, John M. (John Malcolm). Paleoflora of Southern Africa: molteno formation (triassic)/ by John M. Anderson, Heidi M. Anderson. - Rotterdam: A. A. Balkema, 1983. - v : ill. ; 31 cm. v.2 - Gymnosperms (excluding dicroidium) ISBN: 9061912822 Subjects--Topical Terms: Paleobotany--Triassic.Paleobotany--Africa, Southern.