Angiosperms

Angiosperms are seed plants whose ovules are fully enclosed inside a protective ovary, unlike the naked ovules of gymnosperms — this is what the name literally reflects. They first appear in the fossil record around 140 million years ago, in the early Cretaceous period, and have since gone on to dominate the vegetation of the entire world. As in gymnosperms, the sporophyte is the overwhelmingly dominant, lon …