Fossil Leaf, Glendive Montana Extreme Animals Alive Ammonites were predatory cephalopod mollusks

Ammonites were predatory cephalopod mollusks that resembled squids with spiral shells

the included hang tie allows the board to easily double as wall art

Based on pathologies of fossil bone

She would often ask Mirta for a necklace in "muchos colores

Crystals form through repeated episodes of evaporation

Fossil Leaf, Glendive Montana Extreme Animals Alive Ammonites were predatory cephalopod mollusksDavidia antiqua Fort Union Formation Glendive, Montana Paleocene Fort Union Formation leaf fossils from the Paleocene epoch (approx. 60 million years old) are commonly and naturally brown, ranging from dark brown to reddish orange. These fossils are usually preserved as iron stained impressions or carbonizations in shale or siltstone, creating a high contrast brown on gray appearance.