Early Paleozoic is pretty long time, so you have to be more specific about that. Probably one of the most dominant creatures that ever evolved was Anomalocaris (from Cambrian period). Most of the animals from that time couple of inches long, while Anomalocaris was 2 meters long. Also giant scorpions, like world famous Jaekelopterus rhenaniae were also top predators of it's days.
I know that the angiosperms were most dominant during the cretaceous period but im not too sure about the dinosaurs dominant era. I would assume they were both dominant in the same era but I am not 100% sure.Read more: http://wiki.answers.com/Dinosaurs_and_angiosperms_were_dominant_lineages_during_with_geologic_era#ixzz1G5bqBpQR
The Cretaceous period followed the Jurassic period and lasted from about 145 million to 66 million years ago. In the Cretaceous period, flowering plants became more dominant, dinosaurs continued to diversify, and large marine reptiles like mosasaurs thrived. However, the end of the Cretaceous period marked by a mass extinction event where dinosaurs and many other species went extinct.
jurassic The Triassic was the earliest period of the Mesozoic, followed by the Jurassic then the Cretaceous. The Cretaceous was of the greatest duration.
Cretaceous
The Jurassic period was followed by the Cretaceous period in the Mesozoic era. The Cretaceous period lasted from around 145 to 66 million years ago and ended with a mass extinction event that led to the disappearance of dinosaurs.
The dinosaurs were the dominant land animals during the Jurassic and Cretaceous periods, rising to dominance during the late Triassic.
My cousin lenny
dinosaurs
Reptiles were the primary large animals during the Cretaceous period. On land, there were dinosaurs, in the air were pterosaurs, and the oceans were inhabited by plesiosaurs and mosasaurs.
I know that the angiosperms were most dominant during the cretaceous period but im not too sure about the dinosaurs dominant era. I would assume they were both dominant in the same era but I am not 100% sure.Read more: http://wiki.answers.com/Dinosaurs_and_angiosperms_were_dominant_lineages_during_with_geologic_era#ixzz1G5bqBpQR
The Cretaceous period followed the Jurassic period and lasted from about 145 million to 66 million years ago. In the Cretaceous period, flowering plants became more dominant, dinosaurs continued to diversify, and large marine reptiles like mosasaurs thrived. However, the end of the Cretaceous period marked by a mass extinction event where dinosaurs and many other species went extinct.
During the Tertiary period, dominant organisms included early mammals, large birds, marine mammals like whales and dolphins, and diverse plant species. This period saw the rise of modern mammals, along with the evolution of grasslands, forests, and flowering plants. The Tertiary period also saw the decline of dinosaurs and the rise of more familiar animal groups.
gigagantosaurus
It was a warm tropical place in which many angiosperms (flowering plants) developed and became dominant. Because of this, many new herbivores appeared and others went extinct.The Cretaceous Period was hot and dry.
They were dominant during the mesozoic era, which was made up of the Triassic, Jurassic, and Cretaceous periods.
A Ghariel has evovled from the Dinosaurs from the Cretaceous period and it still look like it did then
I know that the angiosperms were most dominant during the cretaceous period but im not too sure about the dinosaurs dominant era. I would assume they were both dominant in the same era but I am not 100% sure.