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Three Types of Crinoids + Coral - Crawfordsville, Indiana
This is a wonderful association of FOUR different types of crinoids from Ramp Creek Limestone. The largest crinoid on the piece is a 2.8" long Scytalocrinus decadactylus. The second largest on the edge of the plate is an Undescribed inadunate crinoid. The 3rd largest is a Hylodecrinus gibsoni.
It is believed that crinoids from the Ramp Creek Limestone were buried in sediment from nearby deltas during storms. The resulting siltstone deposits are soft enough that fossils can be extracted in exquisite, three-dimensional relief.
It is believed that crinoids from the Ramp Creek Limestone were buried in sediment from nearby deltas during storms. The resulting siltstone deposits are soft enough that fossils can be extracted in exquisite, three-dimensional relief.
SPECIES
Scytalocrinus decadactylus, Hylodecrinus gibsoni, Undescribed Crinoid
LOCATION
Witherspoon Quarry, Crawfordsville, Indiana
FORMATION
Ramp Creek Limestone
SIZE
Matrix 4.3x3.3", Largest crinoid 2.8" long
CATEGORY
SUB CATEGORY
ITEM
#27564
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