The earliest known angiosperm (flowering plant) comes from the early cretaceous and may have been the sammiguelia, a palm-like plant from the Late Triassic.
Angiosperms are also known as flowering plants and are characterized by having seeds inside of their fruit. In contrast, gymnosperms have raw seeds on the surface of their leaves but no flowers or fruits. Gymnosperm seeds are arranged in the form of cones.
Any of the roughly 300,000 species of flowering plants, known as angiosperms or flowering plants, which make up the largest and most diverse subgroup of the Plantae kingdom. About 80% of all currently living green plants are known to be angiosperms.
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