Eras and periods are independent of each other. Eras and periods are independent of each other. Music History Posters Middle Ages Renaissance Baroque Classical Romantic And Twentieth Century Periods Music Education Music History Middle School Music The first geological time period of the Paleozoic Era is known as the Cambrian period. . For example although the date listed for the beginning of the Ordovician period is 485 million years ago it is actually 4854 with an uncertainty plus or minus of 19 million years. This period ended for approximately 53 million years and signifies a dramatic burst of evolutionary modifications in life on Earth also called Cambrian Explosion. Eras and periods both appear at the start of the Cambrian period. Which property is not a characteristic of a. Which best describes eras and periods. Eons are divided into eras which are further divided into periods epochs and ages. Which...
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