What were some of the key
appearances and radiations in the
Mesozoic era?

what were some of the key appearances and radiations of the mesozoic era? ... during the palezoic era the animals mainly consisted of reptiles, amphibians, and marine life. the cenozoic era was mostly dinosaurs and was the start of mammals. then the mesozoic era was different species of mammals mostly.

hope it helps.

linnaeus is the father of taxonomy, which is the system of classifying and naming organisms. one of his contributions was the development of a hierarchical system of classification of nature. today, this system includes eight taxa: domain, kingdom, phylum, class, order, family, genus, and species.