Bacculites and ammonite segment

Tagged with:

• Colorado
• Identify?
• Petrified bone

Tagged with:

• Colorado
• prep
• Turritella

Tagged with:

• bivalves
• brachiopods
• brule formation
• bryozoans
• cephalopods
• chadron formation
• corals
• cretaceous
• decorah shale
• eocene
• fisherites
• frontier formation
• gastropods
• Iowa
• mammals
• maquoketa formation
• meeteetse formation
• Minnesota
• oligocene
• ordovician
• pierre shale
• platteville formation
• stewartville formation
• trilobites
• white river group
• Wyoming