Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
The 29 references without a DOI — listed, not checked
no DOI — not checkedBrenner, G.J., 1976. Middle Cretaceous floral provinces and early migrations of angiosperms, p. 23-47. In C. B. Beck, éd., Origin and Early Evolution of Angiosperms. Columbia University Press. New York, 341 p.
no DOI — not checkedChatrou, L., 1997. Malmea and other post-Pliocene invaders of Central America. Annonaceae Newletter. 11.
no DOI — not checkedCollinson, M.E., 1983. Fossil Plants of the London Clay. Palaeontological Association, London, 121 p.
no DOI — not checkedCronquist, A., 1981. An Integrated System of Classification of Flowering Plants. Columbia University Press, New York, 1262 p.
no DOI — not checkedDeroin, T. and Le Thomas, A., 1989. Sur la systématique et les potentialités évolutives des Annonacées: cas d'Ambavia gerrardii (Baill.) Le Thomas, espèce endémique de Madagascar. Comptes Rendus de l'Académie des Sciences, Paris, série 3, 309: 647-652.
no DOI — not checkedDonoghue, M.J. and Doyle, J.A.. 1989. Phylogenetic analysis of angiosperms and the relationships of Hamamelidae, p. 17-45. In P.R. Crane and S. Blackmore, eds., Evolution, Systematics, and Fossil History of the Hamamelidae, vol. 1, Clarendon Press, Oxford, 305 p.
no DOI — not checkedDoyle, J.A., 1984. Evolutionary, geographic, and ecological aspects of the rise of angiosperms. Proceedings of the 27th International Geological Congress (Moscow, 1984), 2: 23-33.
no DOI — not checkedDoyle, J.A., Biens, P., Doerenkamp. A. and Jardiné, S., 1977. Angiosperm pollen from the pre-Albian Cretaceous of Equatorial Africa. Bulletin des Centres de Recherches Exploration-Production Elf-Aquitaine, 1: 451-473.
no DOI — not checkedDoyle. J.A., Jardiné, S. and Doerenkamp. A., 1982. Afropollis, a new genus of early angiosperm pollen, with notes on the Cretaceous palynostratigraphy and paleoenvironments of Northern Gondwana. Bulletin des Centres de Recherches Exploration-Production Elf-Aquitaine, 6: 39-117.
no DOI — not checkedDoyle, J.A. and Le Thomas, A., 1995. Evolution of pollen characters and relationships of African Annonaceae: Implications of a cladistic analysis, p. 241-254. In A. Le Thomas and E. Roche, eds., 2e Symposium de Palynologie africaine, Tervuren (Belgique), Centre international pour Ia Formation et les Échanges géologiques, Publication occasionnelle, 1995/31, Orléans, 262 p.
no DOI — not checkedDoyle, J.A. and Le Thomas, A., 1996. Phylogenetic analysis and character evolution in Annonaceae. Bulletin du Muséum national d'Histoire naturelle, section B, Adansonia. 18: 279-334.
no DOI — not checkedFries, R.E., 1959. Annonaceae, p. 1-171. In H. Melchior, éd., Die Naturlichen Pflanzenfamilien, Zweite Auflage, Band 17all, Duncker and Humblot, Berlin, 229 p.
no DOI — not checkedFriis, E.M. and Crepet, W.L., 1987. Time of appearance of floral features, p. 145-179. In E.M. Friis, W.G. Chaloner and P.R. Crane, eds., The Origins of Angiosperms and Their Biological Consequences. Cambridge University Press, Cambridge, 358 p.
no DOI — not checkedLe Thomas, A., 1980-1981. Ultrastructural characters of the pollen grains of African Annonaceae and their significance for the phylogeny of primitive angiosperms. Pollen et Spores, 22: 267-342, 23: 5-36.
no DOI — not checkedLe Thomas, A. and Doyle, J.A., 1996a. Geographic relationships of Malagasy Annonaceae, p. 85-94. In W.R. Lourenço, éd., Biogéographie de Madagascar. ORSTOM, Paris.
no DOI — not checkedLe Thomas, A. and Doyle, J.A., 1996b. Implications d'une analyse cladistique dans l'histoire géographique des Annonaceae: famille d'Angiospermes primitives, p. 171-180. In J.-L. Guillaume, M. Belin and H. Puig, eds., Phytogéographie tropicale: réalités et perspectives. ORSTOM. Paris, 386 p.
no DOI — not checkedMaas, P.J.M. and Westra, L.Y.T., 1984. Studies in Annonaceae. II. A monograph of the genus Anaxagorea A. St. HiI., Part 1. Botanische Jahrbucher fur Systematik, 105: 73-134.
no DOI — not checkedMaddison, W.P. and Maddison, D.R., 1992. MacClade: Analysis of Phylogeny and Character Evolution, version 3. Sinauer Associates, Sunderland, Mass., 398 p.
no DOI — not checkedParrish, J.T., 1987. Global palaeogeography and palaeoclimate of the Late Cretaceous and Early Tertiary, p. 51-73. In E.M. Friis, W.G. Chaloner and P.R. Crane, eds., The Origins of Angiosperms and Their Biological Consequences. Cambridge University Press, Cambridge, 358 p.
no DOI — not checkedRogstad, S.H. and Le Thomas, A., 1989. Pollen characters of the Polyalthia hypoleuca complex {Annonaceae): Their significance in establishing monophyly and candidate outgroups. Bulletin du Muséum national d'Histoire naturelle, Paris, 4e série, 11: 257-278.
no DOI — not checkedSchuster, R.M., 1976. Plate tectonics and its bearing on the geographical origin and dispersal of angiosperms, p. 48-138. In C. B. Beck, éd., Origin and Early Evolution of Angiosperms. Columbia University Press. New York, 341 p.
no DOI — not checkedSinclair, J., 1955. A revision of the Malayan Annonaceae. Gardens' Bulletin, Singapore, 14: 149-516.
no DOI — not checkedSmith, A.C., 1973. Angiosperm evolution and the relationship of the floras of Africa and South America, p. 49-61. In BJ. Meggers, E.S. Ayensu and W.D. Duckworth, eds., Tropical Forest Ecosystems in Africa and South America: A Comparative Review. Smithsonian Institution Press, Washington, D.C., 350 p.
no DOI — not checkedSole de Porta, N., 1971. Algunos généras nuevos de polen procedentes de la Formaciôn Guaduas (Maastrichtiense-Paleoceno) de Colombia. Studia Geologica, Salamanca, 2: 133-143.
no DOI — not checkedTakhtajan, A.L., 1969. Flowering Plants: Origin and Dispersal. Smithsonian Institution, Washington, D.C., 310 p.
no DOI — not checkedvan Heusden, E.CH., 1992. Flowers of Annonaceae: morphology, classification, and evolution. Blumea Supplement, 7: 1-218.
no DOI — not checkedvan Zuilen, CM., 1996. Patterns and affinities in the Duguetia alliance (Annonaceae). Molecular and morphological studies. Ph.D. Thesis, University of Utrecht, 133 p.
no DOI — not checkedWalker, J.W., 1976. Evolutionary significance of the exine in the pollen of primitive angiosperms, p. 1112-1137. In I. K. Ferguson and J. Muller, eds., The Evolutionary Significance of the Exine. Academic Press, London, 591 p.
no DOI — not checkedWard, J.V., Doyle, J.A. and Hotton, CL., 1989. Probable granular magnoliid angiosperm pollen from the Early Cretaceous. Pollen et Spores, 33: 101-120.
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