1. Podozamites and associated cones and scales from the Upper Triassic Molteno Formation, Karoo Basin, South Africa;Anderson;Palaeontol. Afr.,1978
2. Palaeoflora of Southern Africa;Anderson,1985
3. Index of generic names of fossil plants, 1820–1965;Andrews;Geol. Surv. Bull.,1970
4. Aspectos evolutios de las coniferas gondwanicas del Paleozoico;Archangelsky;Bull. Sci.,1985
5. Late Triassic plants from the Chinle Formation in North-Eastern Arizona;Ash;Palaeontology,1972