the Cenozoic era is the era of mammals. it started 65 mya and is currently going on. the climate is well what it is now so the data it is today in duxbury ma it is COLD! there are 5 major continents and they are spread out all over the seas. pangea broke apart and the continental spaced apart a fue in a year islands were formed when volcanoes erupted and mountains were formed when plats in the earth rammed into each other.
there are some animals here too as you know there are horses cows and lizards and there are some plants to hear is one thing grass... : O you gasp. at this current time there is no current end of the era but scientists have found out that in hundreds of years the sun will go boom and we will all die.