1. Palaeoflora of Southern Africa;Anderson,1985
2. Heyday of the gymnosperms: systematics and biodiversity of the Late Triassic Molteno fructifications;Anderson;Strelitzia,2003
3. Brief history of the gymnosperms: classification, biodiversity, phytogeography and ecology;Anderson;Strelitzia,2007
4. Upper Triassic Dockum flora of eastern New Mexico and Texas;Ash,1972
5. Two new Late Triassic plants from the Petrified Forest of Arizona;Ash;J. Paleontol.,1973