'''Ìgbà iwájú Kámbríà''' (Pre-Cambrian) ni orukoorúkọ afisiseàfiṣiṣé funfún ibu asiko siwaju Iggbarun ''[[Phanerozoic|Igbeyosaye]]'' isinyi, be sini o je Igbarungbangba to pin si and is a Supereon divided into several [[eon (geology)|igbarun]] orisirisi lori [[geologic time scale|osuwon asiko iseorooriile]]. O bu lati idarajo [[Earth|aye]] ni bi 4600 [[annum|Ma]] (egbegberun odun seyin) de ibere [[Cambrian|Ìgbà Kámbríà]], nibi 542 Ma, nigbati awon eranko onigba-eyin lilo koko po jantirere.O nje Ìgbà iwájú Kámbríà nitoripe o siwaju Igba Kambria, the first [[geologic period|igba]] akoko Igbarun Igbeyosaye, ti oruko re wa lati inu oruko ologbologbo fun [[Wales]], ''[[Cambria]]'', nibi ti awon apata lati igba yi ti koko je sisekiko. The Precambrian accounts for 88% of geologic time.
