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7.6" Crinoid (Dendrocrinus) Fossil - Rochester Shale, New York
This is a 7.6" crinoid (Dendrocrinus celsus) fossil from the famous Rochester Shale near Middleport, New York. Fossils from this quarry and in particular crinoids are getting harder and harder to come by.
The crinoid has a nice, long section of stem attached. There is some disarticulation in the arms, possibly due to storm activity during deposition. There are some bryozoan fossils also present on the shale.
The crinoid has a nice, long section of stem attached. There is some disarticulation in the arms, possibly due to storm activity during deposition. There are some bryozoan fossils also present on the shale.
Crinoids, sometimes commonly referred to as sea lilies, are animals, not plants. They are echinoderms related to starfish, sea urchins, and brittle stars. Many crinoid traits are like other members of their phylum; such traits include tube feet, radial symmetry, a water vascular system, and appendages in multiples of five (pentameral). They first appeared in the Ordovician (488 million years ago) and some species are still alive today.
SPECIES
Dendrocrinus celsus
LOCATION
Caleb's Quarry, Middleport, New York
FORMATION
Rochester Shale
SIZE
Crinoid 7.6" (including stem), Shale 12.2 x 6.3"
CATEGORY
SUB CATEGORY
ITEM
#197399
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