If the significant events of the Cenozoic era, such as the rise of mammals and birds, the development of grasslands, and the formation of the modern continents, did not occur, the Earth's biodiversity and ecological landscapes would be drastically different. Mammals may not have become the dominant terrestrial vertebrates, possibly allowing reptiles or amphibians to thrive instead. Additionally, the absence of flowering plants and grasslands would lead to diminished herbivore populations, altering food webs and ecosystems. Overall, the evolutionary trajectory of life on Earth would be profoundly impacted, potentially resulting in a less diverse biosphere.
The formation of the ozone layer
During the Cenozoic era, which began around 66 million years ago, dinosaurs went extinct at the end of the previous Mesozoic era. Therefore, the existence of dinosaurs is something that did not occur during the Cenozoic era.
Some ancient events that did not occur during the Cenozoic era include the extinction of dinosaurs (Cretaceous-Paleogene transition), the construction of the Egyptian pyramids (Old Kingdom of Egypt), and the founding of the Roman Empire (27 BC).
Yes and, as we are still in the Cenozoic Era, it continues to this day.
Humans appeared during the Quaternary period of the Cenozoic era, which began around 2.6 million years ago. This era is marked by the development of modern human species and the emergence of Homo sapiens.
The extinction of the dinosaurs did not occur during the Cenozoic era. Dinosaurs went extinct at the end of the Mesozoic era, which preceded the Cenozoic era.
The formation of the ozone layer
The colonization of land by plants did not occur during the Cenozoic era as it happened earlier during the Paleozoic era.
During the Cenozoic era, which began around 66 million years ago, dinosaurs went extinct at the end of the previous Mesozoic era. Therefore, the existence of dinosaurs is something that did not occur during the Cenozoic era.
Several periods of mass extinction
The Cenozoic era did not see the occurrence of the emergence of complex multicellular life forms, the formation of the Himalayan mountains, or the development of flowering plants.
The question is very muddled but it can be answeredThe Cenozoic Era started with the end of the dinosaurs and is ongoing 65.5 mya to the present thereforeOf the above the following are in the Cenozoic:QuaternaryTertiaryAnd the following are out of (older than) the Cenozoic:Cretaceous
Cenozoic era
Some ancient events that did not occur during the Cenozoic era include the extinction of dinosaurs (Cretaceous-Paleogene transition), the construction of the Egyptian pyramids (Old Kingdom of Egypt), and the founding of the Roman Empire (27 BC).
Cenozoic.
Yes and, as we are still in the Cenozoic Era, it continues to this day.
Humans appeared during the Quaternary period of the Cenozoic era, which began around 2.6 million years ago. This era is marked by the development of modern human species and the emergence of Homo sapiens.