Agaricocrinus Crawfordsville Crinoid Fossil

Agaricocrinus americanus

Family Coelocrinidae

Geologic Time: Lower Mississippian, Osagean Stage (~ 345 million years ago)

Size: Agaricocrinus crown is 35 mm long by 35 mm wide

Fossil Site: Crawfordsville, Indiana Crinoids

Agaricocrinus americanusDescription: This is a well-preserved example of the Crawfordsville crinoid known as Agaricocrinus americanus of Family Coelocrinidae. The Agaricocrinus is exceptionally well preserved in remarkeble three-dimensional relief, Also note the fine pinnulation that it needed to filter food from the water column. Crinoids disintegrate shortly after death, making fossilization of fine details as seen here a rare event.

click fossil pictures to enlarge

Agaricocrinus americanus



Fossil Museum Navigation:
Geological Time Paleobiology Geological History Tree of Life
Fossil Sites Fossils Evolution Fossil Record Museum Fossils