By dating fossils of pollen and beetles, were angiosperms cretaceous or triassic in origin?
Pollen Floral Roots Deeper in Fossil Record | Answers in Genesis
This means we can eliminate any answers that help to explain why the warm-weather beetle fossils would be older. The characteristics suggest it was suitable for pollination by insects.
Both had pollen from orchids attached to their bodies. Fri Apr 15, 2: This post thanked 1 time.
While the insect record suggests that right after the glacier melted, a warm climate appeared, the pollen record in the same area suggests that the warm climate came much, much later. This contrasts against flowering plants, which harbor their seeds within an enclosed ovary.
The billions of dead things preserved in the fossil record were for the most part buried as various habitats were overwhelmed by violent rising Floodwaters. Evolutionary paleobotanists Peter Hochuli and Susanne Feist-Burkhardt now suspect that flowers were blooming in their diversity by the time dinosaurs evolved, more than million years earlier than previously thought.
However, I understood the paradox in passage. Top Reply Fri Jan 26, So it doesn't really matter how old either of them were. That's too general of a fact to be helpful in explaining our specific predicament.
New discoveries, however, have found that the roots of floral origins and diversity reach down into the Middle Triassic, dated at about million years. E does nothing to explain this difference in dates: Pollen out of Place Flowers are too fragile to be reliably and widely preserved as fossils.
Diverse Triassic pollen is quite consistent with the presence of functioning flowers on earth from its very first week. I am unable to understand the 4 choices that how do these resolve the paradox. The pollen record now reigns uncriticized.
C Beetles can survive in a relatively barren postglacial area by scavenging. The prevailing notion is that flower-like structures first made their emergence during the Cretaceous period, around to million years back, whilst the dinosaurs wandered our planet.
D suggests that our evidence is just misleading -- beetles and plants returned to the area at the same time, when the area warmed it's just that we don't have as much evidence for fossils of pollen in the area so researchers interpreted that to mean that pollen hadn't returned.
Beetles that lived up to 45 million years ago have been found preserved in amber - with orchid pollen still in their mouths.
Flowering plants angiosperms are believed to have evolved from long extinct, gymnosperm vegetation, related to cycads, conifers, Ginkgos and Gnetales.