Characteristics of Tugas - Verse 64

Just as Vedas are divided into four Padas, a Yuga also has four Padas. Just as god Brahma ordained a Yuga to consist of four parts (feet) , so he has ordained four parts (Padas—feet) to this Purana* as well. * Surd$dm in the text is a misprint for Purdnam, as recorded in A. Hence that reading is accepted. Vayu Parana