Petrified Wood is a fossil that forms when dissolved material precipitates and replaces wood.
||Green River Fossils
The Green River Formation is one of the most famous rock units in the world for its fossils.
Geology Tools - Hammers, field bags, hand lenses, maps, hardness picks, gold pans.
||The Oldest Animals?
The Oldest Animal Fossils? Possibly the oldest animals ever discovered. 650 MYO.
Fossil Gems Many gems such as coral, amber, ammolite, and petrified wood are fossils.
Fossilization Mystery - 1/2 billion years ago some creatures were preserved in great detail.
||Largest Land Mammals
Largest Land Mammals The extinction of dinosaurs allowed mammals to grow much larger.
Australopithecus sediba A new hominid species discovered in South Africa.
Ordovician Fossil Discovery The oldest soft-bodied fossils found in Ordovician rocks.
Ammolite is a fossil and a gemstone. It is shell material from fossil ammonites.
||Fossils and Beer
Fossils and Beer - Do you know which fossiliferous rock is used to make beer?
Fossil Kits Learn how to identify fossils and where they fit into the geologic time scale.
|Huge New Sauropod
Abydosaurus A new sauropod dinosaur. The closest known relative of Brachiosaurus.
||Climate & Ecosystems
Understanding Past Climate and Ecosystems West Coast Fossil Park, South Africa.
Petrified Palm is a gem material found in Oligocene age rocks of the U.S. Gulf Coast.
||A Close Look at Coal
Coal Through a Microscope Coal is more than a black rock. It is THE most interesting rock.
|Tucson Mineral Show
Tucson Mineral Show Photos A visit to the Tucson Gem, Mineral and Fossil Show.
Jet is a black organic gem material that forms from well-preserved woody material.
Turritella Agate is a brown agate containing snail fossils from the Green River Formation.
||What is Peanut Wood?
Peanut Wood is a type of fossil wood found in Australia. Do you know how it forms?