The enigma of angiosperm origins

摘要: Preface Part I. The Setting of the Problem: 1. Outline history investigations 2. Current contributions on origin 3. Challenges to customary procedures 4. Working principles 5. Stratigraphic framework 6. General Mesozoic palynologic evidence 7. Integration floras and faunas II. Evidence for Cretaceous Origin: 8. megafossils 9. English Barremian monosulcate pollen 10. First convincing angiospermous fossils 11. angiosperm consolidation III. Consequences Conclusions: 12. Cenozoic radiation 13. Research unattained but possible 14. Principles, time choice 15. biological conclusions Glossary References Index.