Yoruboid is a group of languages composed of Igala, a language spoken in central Nigeria, and the Edekiri group, the members of which are spoken in a band across Togo, Benin and southwestern Nigeria.. 
Ìgbà iwájú kambria (Pre-camBrian) ní orúkọ àfiṣiṣẹ́ fún ìbú àsìkò síwájú  IGgbarun igbeyósáyé ìsìnyí, bẹ̀ síni ó jẹ́ ìgbàrungbangba tó pín sí and òhun a  Supereon Divided into several ìgbàrun oríṣiríṣi lórí òṣùwọ̀n àsìkò iṣẹ́oróori.. 