The following points highlight the top nine theories about ancestors of angiosperms. Some of the theories are: 1. The Isoetes – Monocotyledon Theory 2. The Coniferales-Amentiferae Theory 3. The Gnetaies’-Angiosperm Theory 4. The Anthostrobilus (Bennettitalean) Theory 5. The Caytonialean Theory 6. The Stachyospory-Phyllospermae Theory 7. The Pteridosperm Theory and Others. 1. The Isoetes – Monocotyledon […]
Theories about the Ancestors of Angiosperms
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Geographic Location on the Origin of Angiosperms
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The below mentioned article provides a short notes on Geographic Location of the Origin of Angiosperms. The geographic origin of the angiosperms has been under considerable debate. Just as the fossil evidence is insufficient to decide the time, as well as the nature of ancestors of angiosperms, it is also inadequate to settle the problem […]
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