What do paleozoic, mesozoic and Cellozoic mean?
Paleozoic, Mesozoic and Cellozoic refer to the three main era of complex multicellular life on Earth - in Greek words mean "ancient life", "middle life" and "new life". Palaeozoic stretches from 542 to 251 million years, mesozoic from 251 to 65.5 million years and Cellozoic from 65.5 million years to the present.
speaking in an extremely wide way, paleozoic could be considered an age of invertebrates, land plants, amphibians and synapsides (ancestors of mammals), the mesozoic was the age of reptiles (especially dinosaurs) and Cellozoy is the age of mammals. Since the deadlines were created, it has been found that a complex multicellular life has actually existed about 60 million years before the start of the Paleozoic. This life is referred to as Fauna Ediacaran. The oceans were filled with small, simple organisms such as trilobites, Cnidarian (relatives of jellyfish) and quilted "mattresses" and "bags" that were quilted folk "mattresses". Ediacaran Fauna quickly disappeared and was replaced by a set of rapidly diversificationH organisms that branched into early ancestors of almost all modern animals Phyla. This sudden episode of adaptive radiation is now known as Cambrian explosion.
Some of the most important evolutionary milestones occurred in the rest of the paleozoic. The animals grew from the diameter only by a length of only a few centimeters to the forms much larger than humans, including predatory fish dunklosteus , which grew to a length of 6 m (20 ft) and was the first superparenor of vertebrates. Dunkleosteus lived in the shallow Sea of the Devonian period, about 370-360 million years ago. Life has passed from the fact that it was completely naval to colonize Earth, a process that began with early plants 475 million years ago, and was not completed as long as the earliest known trees began to form forests about 380 million years ago. Palaeozoic ended in the largest mass extinction in history, extinction of Permian-Triassic, which erased about 90% of all animal species on PLANet.
Messozoic dominated various types of reptiles, including pterosaurs that occupied air and were the first flying vertebrates; Ichthyosaurs and balls, naval reptiles who occupied the oceans; Sauropods, massive four -legged dinosaurs who were dominant herbivores; THEROPODS, dinosaurs who eat meat who walked on two legs and included Tyrannosaurus rex , and numerous other dinosaurs that used armor and other adaptations to avoid consumption. Flora and Fauna Mesozoiky were well published by various documentaries and films focused on dinosaurs.
Custocoic, the last era, is characterized by mammals who have survived a mass extinction that killed dinosaurs and continued to control the planet. The birds that have evolved from the group of Theopoda dinosaurs have evolved to take over the sky while the sea occupied fish and whales. The mammals of all sizes evolved, although they were smaller than dinosaurs. The decisive lines of mammalize predators and herbivores have evolved, in theThey yirked the development of human beings, which is the most intelligent species it has ever seen.