National Fossil Day - Arizona's state fossil is petrified wood

Happy National Fossil Day!   The National Park Service organizes the events and promotional materials - http://nature.nps.gov/geology/nationalfossilday/

The Arizona State Fossil, petrified wood, is among a long list of state symbols shown on the Arizona Secretary of State's website.

http://www.azsos.gov/public_services/kids_state_symbols.htm