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Orophocrinus saltensis
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By DPS Ammonite
Taxonomy
Blastoid
Kingdom: Animalia
Phylum: Echinodermata
Class: Blastoidea
Order: Fissiculata
Family: Orophocrinidae
Genus: Orophocrinus
Species: Orophocrinus saltensis
Author Citation Macurda 1975
Geological Time Scale
Eon: Phanerozoic
Era: Paleozoic
Period: Carboniferous
Sub Period: Mississippian
Epoch: None
Stratigraphy
Escabrosa Limestone
Provenance
Collector: Me
Date Collected: 11/16/2019
Acquired by: Purchase/Trade
Dimensions
Width: 31 mm
Location
Superior
Pinal County
Arizona
United States
Comments
This silicified blastoid at 31 mm in width is close to maximum size for the species. Found with at least three species of crinoids in Mississippian Escabrosa Limestone which is roughly equivalent to the Redwall Limestone of central and northern Arizona.
Macurda D. B., Jr. 1965. The functional morphology and stratigraphic distribution of the Mississippian blastoid genus Orophocrinus. Journal of Paleontology 39(6):1045-1096.
McKee, Edwin D., Gutschick, R. C., 1969. History of the Redwall Limestone of northern Arizona. Geological Society of America Memoirs 114, 1-700.
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