Outrageously Funny Word Dictionary :: Phymatolithon

👉 A phymatolithon is a type of fossilized plant structure found in the Late Cretaceous period, primarily occurring within the Devonian and Ordovician geologic periods. These structures are composed of calcium carbonate and can range from small to large, depending on their size. Phymatolithons are characterized by their intricate arrangement of cells, which can vary in shape and size.

Phymatolithon