title: The origin of angiosperms: New and old problems.
abstract: Recent palaeobotanical discoveries assisted by the thorough morphological analysis of 'living fossils'-archaic extant plants-have brought to light many unexpected features of the early angiosperms and their immediate precursors, while studies in palaeoecology have provided a basis for deciphering the chronology of evolutionary events and their environmental forcing. Our previous ideas of what is primitive and what angiosperm ancestors looked like are presently under revision. We now have a clearer picture of how macroevolution proceeds and how a large taxon could come into being.
authors.affiliation: All-Union Institute of Nature Conservation, VNllpriroda, Znamenskoe-Sadki, Moscow 113628, PO Vilar, USSR.
authors.forename: V A
authors.initials: VA
authors.lastname: Krassilov