when did the mesozoic era start and end
Mesozoic The Mesozoic Era ( /ˌmɛsəˈzoʊɪk, ˌmiː-, -soʊ-/ or /ˌmɛzəˈzoʊɪk, ˌmiː-, -soʊ-/[1][2]) is an interval of geological time from about 252 to 66 million years ago. It is also called the Age of Reptiles, a phrase introduced by the 19th century paleontologist Gideon Mantell who viewed it as dominated by diapsids such as Iguanodon, Megalosaurus, Plesiosaurus and Pterodactylus. This Era is also called from a paleobotanist view the Age of Conifers.[3]
Classic Maya collapse In archaeology, the classic Maya collapse is the decline of Classic Maya civilization and the abandonment of Maya cities in the southern Maya lowlands of Mesoamerica between the 8th and 9thÂ centuries, at the end of the Classic Maya Period. Preclassic Maya experienced a similar collapse in the 2nd century.