The Cenozoic Era Consists of the Tertiary and ______________ Periods

Q125: Any indication of prehistoric life preserved in

Q126: The span of time required for the

Q127: The organisms called _ were the first

Q128: Periods are divided into<br>A) eons.<br>B) epochs.<br>C) millennia.<br>D)

Q129: The oldest algal fossils are found on

Q131: The actual age of rock layers and

Q132: The Jurassic is a(n)<br>A) epoch.<br>B) era.<br>C) eon.<br>D)

Q133: Lack of knowledge of the phenomenon called

Q134: Layers of sediment, lava, and ash are

Q135: The earliest (oldest) period in the Paleozoic