Most fossils are found in sedimentary rocks - rocks which were created when shells or small loose bits of rock are laid down in layers.
(Most fossils; are found; L:in sedimentary rocks) (sedimentary rocks; were created; T:when shells or small loose bits of rock are laid down in layers) (shells or small loose bits of rock; are laid down; )
Most fossils sedimentary rocks shells or small loose bits of rock
are found were created are laid down
L:in sedimentary rocks
T:when shells or small loose bits of rock are laid down in layers