Fossil leaf

Fossil

Also called Leaf fossil

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About it

Leaves of broadleaf trees and conifers pressed as brown or black films in fine shale. Florissant in Colorado, Republic in Washington, and Clarkia in Idaho, where Miocene leaves can look green when first split, are favourites.

Type
Fossil (plant)
Group
Leaf (plant)
Colours
brown, black, tan, red-brown, greenish brown
Transparency
opaque
Periods
Cretaceous, Paleogene, Neogene

Typical values: real specimens vary. For more, see mindat.org.