Where: Gila County, Arizona (33.8° N, 110.3° W: paleocoordinates 1.2° S, 42.4° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Naco Formation, Middle Pennsylvanian (315.2 - 307.0 Ma)
• "stratigraphically above the Kohl Ranch locality"
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithology not reported
Size class: macrofossils
Collected by G. D. Webster in 1971
Primary reference: G. D. Webster. 1981. New crinoids from the Naco Formation (Middle Pennsylvanian) of Arizona and a revision of the Family Cromyocrinidae. Journal of Paleontology 55:1176-1199 [G. Webster/G. Webster]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 90773: authorized by John Alroy, entered by John Alroy on 16.08.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Crinoidea | |
Delocrinus sp. Miller and Gurley 1890 Sea lily
Endelocrinus sp. Moore and Plummer 1940 Sea lily | |
Paradelocrinus nederi Sea lily | |
Synarmocrinus carrizoensis n. sp., Dicromyocrinus carrizoensis n. sp.
Synarmocrinus carrizoensis n. sp. Sea lily
Dicromyocrinus carrizoensis n. sp. Sea lily |