The organic remains of Precambrian plant fossils are found within ancient sedimentary and metasedimentary 2 rocks and strata found on the continents.
(The organic remains of Precambrian plant fossils; are found; L:within ancient sedimentary and metasedimentary 2 rocks and strata) (metasedimentary 2 rocks and strata; found; L:on the continents)
The organic remains of Precambrian plant fossils metasedimentary 2 rocks and strata
are found found
L:within ancient sedimentary and metasedimentary 2 rocks and strata
L:on the continents