- Human pathology

Home > A. Molecular pathology > Precambrian


Sunday 3 April 2022



Definition : The Precambrian ( Cryptozoic ) is the earliest part of Earth history, set before the current Phanerozoic Eon.

The Precambrian is so named because it preceded the Cambrian, the first period of the Phanerozoic Eon, which is named after Cambria, the Latinised name for Wales, where rocks from this age were first studied.

The Precambrian accounts for 88% of the Earth’s geologic time.