Silurian Wenlockian Star - 1.59" Spiral Graptolite shrimp PTEROSAUR (Wing bone)

PTEROSAUR (Wing bone)

TRINITITE (First nuclear bomb test)

calling to mind the circular pattern of Stonehenge

All raptor teeth specimens ship in our glass-topped riker display cases

90" sandstone pendant that has been imprinted with a manganese oxide dendrite in a branching pattern

Silurian Wenlockian Star - 1.59" Spiral Graptolite shrimp PTEROSAUR (Wing bone)In the prehistoric sea, all sorts of adaptations were needed to survive and thrive. Graptolites are a clear example of just that. They first appeared in the Cambrian as benthic animals, tiny filter feeding creatures that lived together in interconnected colonies, connected by organic tubing. However, many Graptolite colonies evolved into planktonic floating groups, carried by the ocean's currents. This adaptation brought them all across the world and