when did flowers first appear in the fossil record
Evolutionary history of plants Flowers are modified leaves possessed only by the angiosperms, which are relatively late to appear in the fossil record. The group originated and diversified during the Early Cretaceous and became ecologically significant thereafter.[102] Flower-like structures first appear in the fossil records some ~130 mya, in the Cretaceous.[103]
Dicotyledon The dicotyledons, also known as dicots (or more rarely dicotyls[2]), were one of the two groups into which all the flowering plants or angiosperms were formerly divided. The name refers to one of the typical characteristics of the group, namely that the seed has two embryonic leaves or cotyledons. There are around 200,000 species within this group.[3] The other group of flowering plants were called monocotyledons or monocots, typically having one cotyledon. Historically, these two groups formed the two divisions of the flowering plants.