Flowers may have existed even before the first known dinosaurs roamed the earth, blooming 100 million years earlier than previously thought, a new fossil study has found.
Drilling cores from Switzerland have revealed the oldest known fossils of direct ancestors of flowering plants. These beautifully preserved 240-million-year-old pollen grains are evidence that flowering plants evolved 100 million years earlier than previously thought, according to Researchers from the University of Zurich. Flowering plants evolved from extinct plants related to conifers, ginkgos, cycads, and seed ferns. The oldest known fossils from flowering plants are pollen grains.
An uninterrupted sequence of fossilised pollen from flowers begins in the Early Cretaceous, approximately 140 million years ago, and it is generally assumed that flowering plants first evolved around that time.
The present study documents flowering plant-like pollen that is 100 million years older, implying that flowering plants may have originated in the Early Triassic (between 252 to 247 million years ago) or even earlier.
Researcher Peter Hochuli and Susanne Feist-Burkhardt from Paleontological Institute and Museum, found pollen grains that resemble fossil pollen from the earliest known flowering plants.