Eocambrian is a loosely used, imprecisely defined term referring to the latest (youngest) portion of time in the

Precambrian The Precambrian (or Pre-Cambrian, sometimes abbreviated pꞒ, or Cryptozoic) is the earliest part of Earth's history, set before the current Phanerozoic Eon. The Precambrian is so named because it preceded the Cambrian, the first period of the ...

Eon or to the uppermost Precambrian sediments which were continuously deposited across the Precambrian-

Cambrian The Cambrian Period ( ; sometimes symbolized C with bar, Ꞓ) was the first geological period of the Paleozoic Era, and of the Phanerozoic Eon. The Cambrian lasted 53.4 million years from the end of the preceding Ediacaran Period 538.8 million ...

time boundary. While the term had some usage in older literature, it does not appear on the official International Commission on Stratigraphy (ICS) time scale nor in the American Geosciences Institute (AGI) Glossary of Geology.

References

Precambrian geochronology {{geochronology-stub