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The gas caused the crinoid to float and could probably be regulated to allow the crinoid to move up and down in the water column
but was not seriously excavated for scientific study until the 1970's
Paint has been found on some Adena tablets
adults on all fours
Miasaura Dinosaur Bone Pathology, of a Cancerous Grownt on Cervical Rib Triceratops The gas caused the crinoidA bone pathology refers to abnormalities in bone growth or healing from injury or disease. Such abnormalities (pathologies) are not limited to modern or living animals and are also found in the fossil record. Finding bone pathologies in the fossil record are rare. The replica specimen presented here shows how injury or disease affected the normal growth of the bone. It is fascinating to see how the animal reacted to the injury or disease and to