Neogene Period, the name of the more recent of two periods (the other being the Paleogene Period) into which some geologists divide the Cenozoic Era. The Neogene began about 23,000,000 years ago and extends to the present. It includes the Miocene, Pliocene, and Pleistocene epochs. Most geologists today divide the Cenozoic Era into the Tertiary and Quaternary periods instead of the Neogene and Paleogene periods.
It's not so much about time as it is about money. What dictates how long an archeological team is permitted to dig at a particular site?
Dinosaur eggs and the embryos inside can teach us a lot about dinosaur reproduction and behavior. But how do scientists get the rocky embryos out from the equally rocky shells?