erathem मीनिंग इन हिंदी

उदाहरण वाक्य

1. The International Commission on Stratigraphy ( ICS ) once proposed that the Quaternary be considered a sub-era ( sub-erathem ) of the Neogene, with a beginning date of 2.58 Ma, namely the start of the Gauss-Matuyama magnetostratigraphic boundary.