Kohl Ranch (Carboniferous of the United States)

Also known as Tonto Creek

Where: Gila County, Arizona (34.3° N, 111.1° W: paleocoordinates 0.4° S, 42.5° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Naco Formation, Moscovian (315.2 - 307.0 Ma)

• "Middle Pennsylvanian... Desmoinesian, and probably early Desmoinesian" based on fusulinids

•from the "beta member" spanning the equivalent of "bed 18 through 23" in a nearby measured section

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified, shelly/skeletal, gray, muddy, calcareous siltstone

• "shallow water, probably no more than 15-20 m deep, that was at least occasionally turbid"
• "richly fossiliferous sequence of ledge-forming limestones interbedded with less resistant calcareous shales and mudstones... The faunule described in this paper was collected from a light gray calcareous shaly siltstone and mudstone"

Size class: macrofossils

Collected by J. Konecny, S. Konecny

• Northern Arizona University collection except for the holotype of Paraconularia kohli, which at Arizona State University

•"a favorite collecting site for paleontology classes and amateur collectors for many years"

Primary reference: D.C. Brew and S.S. Beus. 1976. A Middle Pennsylvanian fauna from the Naco Formation near Kohl Ranch, Central Arizona. Journal of Paleontology 50:888-906 [G. Webster/G. Webster]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 90772: authorized by John Alroy, entered by John Alroy on 16.08.2009, edited by Trisha Wolfe

Creative Commons license: CC BY (attribution)

Taxonomic list

 Fusulinoidea - Fusulinidae
 Fusulinoidea -
 Productida - Strophalosiidae
Leptalosia sp. Dunbar and Condra 1932
 Productida - Echinoconchidae
"Juresania nebrascensis" = Parajuresania nebrascensis Owen 1852
 Productida - Productidae
Antiquatonia sp., "Antiquatonia portlockiana" = Antiquatonia portlockianus
Antiquatonia sp. Miloradovich 1945
"Antiquatonia portlockiana" = Antiquatonia portlockianus Norwood and Pratten 1855
 Productida - Linoproductidae
Linoproductus prattenianus Norwood and Pratten 1855
 Orthotetida - Derbyiidae
Derbyia crassa Meek and Hayden 1858
 Athyridida - Athyrididae
 Spiriferida - Spiriferidae
 Myalinida - Myalinidae
 Cardiidia - Sanguinolitidae
Wilkingia terminale Hall 1852 clam
 Cardiida - Kalenteridae
Permophorus ? subcostatus Meek and Worthen 1866 clam
 Protobranchia - Nuculanidae
Phestia sp. Chernyshev 1951 pointed nut clam
 Euomphalina - Euomphalidae
"Straparollus (Amphiscapha) subrugosus" = Amphiscapha subrugosa
"Straparollus (Amphiscapha) subrugosus" = Amphiscapha subrugosa Meek and Worthen 1873 snail
 Prosobranchia - Pseudozygopleuridae
 Bellerophontida - Bellerophontidae
"Bellerophon (Bellerophon) crassus" = Waagenella crassus
"Bellerophon (Bellerophon) crassus" = Waagenella crassus Meek and Worthen 1860 snail
 Symmoriiformes - Symmoriidae
Petrodus patelliformis1 McCoy 1848 elasmobranch
 Hybodontiformes -
Hybodontoidea indet.1 Zangerl 1981 elasmobranch
 Ctenacanthiformes -
Acandylacanthus sp.1 St. John and Worthen 1875 elasmobranch
 Ctenacanthiformes - Ctenacanthidae
""Cladodus" occidentalis" = Glikmanius occidentalis1, Amelacanthus sp.1
""Cladodus" occidentalis" = Glikmanius occidentalis1 Leidy 1859 elasmobranch
Amelacanthus sp.1 Maisey 1982 elasmobranch
 Cochliodontiformes - Cochliodontidae
Venustodus leidyi1 St. John and Worthen 1875 chimaera
Deltodus sublaevis1 Agassiz 1843 chimaera
One anterior and one posterior tooth
Deltodus angularis1 Newberry and Worthen 1866 chimaera
>50 teeth and a number of fragments
  - Lagarodontidae
Lagarodus angustus1 Romanovsky 1864 chimaera
 Orodontiformes - Orodontidae
Orodus sp.1 Agassiz 1838 chimaera
Species unclear; most closely resembles O. cinctus and O. greggi
Physonemus sp.1 Agassiz 1843 chimaera
 Petalodontiformes - Petalodontidae
Petalodus ohioensis1 Safford 1853 chimaera
 Isorophida - Agelacrinitidae
 Cladida -
? Cromyocrinus sp.2 Trautschold 1867 Sea lily
 Cladida - Cromyocrinidae
Metacromyocrinus sp.2 Strimple 1961 Sea lily
Aglaocrinus konecnyorum n. sp.2 Sea lily
Dicromyocrinus beusi n. sp.2 Sea lily
 Cladida -
"Sciadiocrinus brewi n. sp." = Eirmocrinus brewi2, "Eirmocrinus jeani n. sp." = Eirmocrinus brewi
"Sciadiocrinus brewi n. sp." = Eirmocrinus brewi2 Webster and Lane 1970 Sea lily
"Eirmocrinus jeani n. sp." = Eirmocrinus brewi Webster and Lane 1970 Sea lily
 Conulariida - Conulariidae
Paraconularia kohli n. sp. jellyfish