Exceptional preservation of tiny embryos documents seed dormancy in early angiosperms

The discovery of embryos and their associated nutrient storage tissues in exceptionally well-preserved angiosperm seeds from the Early Cretaceous period. The earliest flowering plants bloomed during the Cretaceous, under the feet of the dinosaurs. They are generally thought to have been small, herbaceous plants, adapted for the quick colonization of disturbed or marginal habitats. This hypothesis is dramatically validated by this study of more...