Pertica quadrifaria is the state fossil of Maine.
Pertica is a genus of extinct vascular plants of the Early to Middle Devonian (around 420 to 380 million years ago). It has been placed in the "trimerophytes", a strongly paraphyletic group of early members of the lineage leading to modern ferns and seed plants.
Its status as state fossil was adopted by the Legislature of 1985.
|State Symbols (E)|
Moose (Animal) • Wild Blueberry (Berry) • Chickadee (Bird) • Maine Coon cat (Cat) • Lobster (Crustacean) •