J. A.  Doyle and Le Thomas, A., ?Cladistic analysis and pollen evolution in Annonaceae?, Acta Bot GallActa Bot Gall, vol. 141, pp. 149 - 170, 1994.

J. A.  Doyle and Le Thomas, A., ?Significance of palynology for phylogeny of Annonaceae: experiments with removal of pollen characters?, Pl Syst EvolPl Syst Evol, vol. 206, pp. 133 - 159, 1997.

J. A.  Doyle, ?Early evolution of angiosperm pollen as inferred from molecular and morphological phylogenetic analyses?, Grana, vol. 44, pp. 227-251, 2005.

J. A.  Doyle and Le Thomas, A., ?Cladistic analysis and pollen evolution in Annonaceae?, Acta Bot Gall, vol. 141, pp. 149 - 170, 1994.

J. A.  Doyle and Le Thomas, A., ?Significance of palynology for phylogeny of Annonaceae: experiments with removal of pollen characters?, Pl Syst Evol, vol. 206, pp. 133 - 159, 1997.

J. A.  Doyle, Bygrave, P. C., and Le Thomas, A., ?Implications of molecular data for pollen evolution in Annonaceae?, in Pollen & Spores: Morphology and Biology, M. M.  Harley, Morton, C. M., and Blackmore, S., Eds. Kew: Royal Botanic Gardens, 2000, pp. 259-284.

J. A.  Doyle and Le Thomas, A., ?Evolution of pollen characters and relationships of African Annonaceae: Implications of a cladistic analysis?, 2nd Symposium on African Palynology, vol. 31. CIFEG, Tervuren (Belgium), pp. 241-254, 1995.

J. A.  Doyle and Le Thomas, A., ?Phylogenetic analysis and character evolution in Annonaceae?, Bulletin du Muséum Natlurelle d'Histoire Naturelle, B, Adansonia, vol. 18, pp. 279-334, 1996.

J. A.  Doyle and Le Thomas, A., ?Phylogeny and geographic history of Annonaceae?, Géographie physique et Quaternaire, vol. 51, pp. 353-361, 1997.