
chapadamalalan

chapadmalan yug bhoovaigyaanik samay (4.0-3.0 Ma) kii ack avadhi haye joe neogene key pliocene yug key bheetar adhik vishesh roop seey dakshin americi bhoomi standhari yug key saath upayog kii jaati haye. yeh montehermosen kaa anusaran kartaa haye aur yukvian yug seey pahale aataa haye.
jeevaashm samagri.
iss yug key denomidae parivaar mein ack krintak "josephoartigasia magna" key jeevaashm dakshini urugve mein paae gaye hain.