Yes, the Cambrian Period was before the Mesozoic Era
The Paleozoic Era of geologic history occurred before the Mesozoic Era.
Fungi slightly predates plant life on earth. The earliest signs of fungi was in the Meso-Proterozoic Era and plant life the Paleozoic Era.
The Precambrian is the informal time before the Cambrian Period.It is informally called a Super-Eon and certainly not a geological Era.Geological time intervals from largest to smallest :-Super-Eon - AEonothem (informal)Eon - EonothemEra - ErathemPeriod - SystemEpoch - SeriesAge - StageChron - Chronozone (informal)
Before the dinosaurs there was a plethora of life including fish, trilobites, lungfish, amphibians, and plenty more. In the Proterozoic era (2 billion to 650 million years ago) there was an assortment of single-celled and simple multi-celled creatures. The next 200 million years (early Paleozoic) showed a great expansion of life in the seas, including a diverse assortment of corals, mollusks, trilobites, sponges, shrimps, and other creatures. the next 150 million years (late Paleozoic) included the development of fish, land plants, insects, amphibians, and ultimately reptiles and flowering plants. The earliest dinosaurs began roughly 250 million years ago (the Mesozoic).
The Regency Era
The Baroque Era
I found that "Regency Era: Regency Error?" by George Kachinsky was informative, but you have have some trouble getting a copy.
After the prehistoric era, came the recorded historic era comprising of the ancient , middle, and modern age.
The Classical Period. that was in the 1800's
paleozoic
25 before the common era.
1811
The current era is Cenozoic era. The preceding era was Mesozoic era. However if you are looking for periods in Cenozoic era, the current one is Neogene period, the preceding period was paleogene period.
Yes, the Cambrian Period was before the Mesozoic Era
The Paleozoic came before the Mesozoic.
The Napoleonic Era.