Search results
Results from the WOW.Com Content Network
Prehistoric plants of the Paleogene Period, during the Early/Lower Cenozoic Era Subcategories. This category has the following 3 subcategories, out of 3 total ...
Prehistoric plants of the Paleocene Epoch — during the Paleogene Period of the Cenozoic Era See also the preceding Category:Late Cretaceous plants and the succeeding Category:Eocene plants Pages in category "Paleocene plants"
The Paleogene Period (IPA: / ˈ p eɪ l i. ə dʒ iː n,-l i. oʊ-, ˈ p æ l i-/ PAY-lee-ə-jeen, -lee-oh-, PAL-ee-; also spelled Palaeogene or Palæogene) is a geologic period and system that spans 43 million years from the end of the Cretaceous Period 66 Ma (million years ago) to the beginning of the Neogene Period 23.04 Ma.
The ginkgos and cycads also appeared during this period. Rich forests were present in many areas, with a diverse mix of plant groups. The gigantopterids thrived during this time; some of these may have been part of the ancestral flowering plant lineage, though flowers evolved only considerably later.
The Paleocene Epoch is the 10 million year time interval directly after the K–Pg extinction event, which ended the Cretaceous Period and the Mesozoic Era, and initiated the Cenozoic Era and the Paleogene Period.
Extant biological taxa that first appeared during the Oligocene epoch, of the Early/Lower Paleogene period. Plants and animals first appearing between 33.9 and 23 million years ago in the Oligocene, that have not yet gone extinct
The fossil history of flowering plants records the development of flowers and other distinctive structures of the angiosperms, now the dominant group of plants on land.The history is controversial as flowering plants appear in great diversity in the Cretaceous, with scanty and debatable records before that, creating a puzzle for evolutionary biologists that Charles Darwin named an "abominable ...
The elimination of dominant Cretaceous groups allowed other organisms to take their place, causing a remarkable amount of species diversification during the Paleogene Period. [29] After the K–Pg extinction event, biodiversity required substantial time to recover, despite the existence of abundant vacant ecological niches. [35]