Carrizo Arroyo Unit 62: Virgilian, New Mexico

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Naticopsidae
Naticopsis (Naticopsis) sp. M'Coy 1844
4 specimens
Gastropoda - Cerithimorpha - Orthonemidae
Stegocoelia (Hypergonia) percostata (Girty 1939)
3 specimens
recombined as Hypergonia percostata
Gastropoda - Goniasmatidae
Goniasma lasallensis (Worthen 1890)
3 specimens
recombined as Goniasma lasallense
Gastropoda - Orthonematidae
Stegocoelia (Taosia) crenulata (Girty 1939)
3 specimens
Gastropoda - Bellerophontida - Bellerophontidae
Retispira eximia (Yochelson 1960)
4 specimens
recombined as Yochelsonellisa eximia
Retispira informal sp. indet. Knight 1945
6 specimens
Retispira espinasa Kues 2004
6 specimens
Bellerophon (Bellerophon) graphicus (Moore 1941)
7 specimens
original and current combination Bellerophon graphicus
Gastropoda - Murchisoniina - Soleniscidae
Soleniscus informal sp. 1 Meek and Worthen 1860
3 specimens
Strobeus informal sp. 1 de Koninck 1881
1 specimen
Bivalvia - Ostreida - Bakevelliidae
Bakevellia aff. sulcata Geinitz 1866
3 specimens
Bivalvia - Pectinida - Aviculopectinidae
Aviculopecten arctisulcatus Newell 1938
11 specimens
Bivalvia - Myalinida - Myalinidae
Myalinella aff. meeki (Dunbar 1924)
18 specimens
Bivalvia - Trigoniida - Schizodidae
Schizodus informal sp. indet. King 1844
3 specimens
Bivalvia - Cardiida - Kalenteridae
Permophorus informal sp. 1 Chavan 1954
144 specimens
Permophorus informal sp. 2 Chavan 1954
88 specimens
Permophorus arcus Kues 2004
36 specimens
see common names

Geography
Country:United States State/province:New Mexico County:Valencia
Coordinates: 35.8° North, 107.1° West (view map)
Paleocoordinates:0.6° North, 36.9° West
Geographic resolution:outcrop
Time
Period:Carboniferous Epoch:Pennsylvanian
Stage:Gzhelian 10 m.y. bin:Carboniferous 5
Key time interval:Virgilian
Age range of interval:303.70000 - 298.90000 m.y. ago
Stratigraphy
Formation:Madera Limestone Member:Red Tanks
Local section:Carrizo Arroyo Local bed:104.5 m
Local order:bottom to top
Stratigraphic resolution:group of beds
Stratigraphy comments: Fusulinid information provided in other papers, but only generally cited here.
Lithology and environment
Primary lithology:gray,green,red poorly lithified "shale"
Secondary lithology:gray argillaceous "limestone"
Includes fossils?Y
Lithology description: The lithology of unit 62 consists of dark gray, greenish gray, and reddish/maroon, moderately fissile shale beds containing concretionary gray to greenish gray argillaceous limestone, locally with dense but thin accumulations of molluscan shell fragments. Small flecks of organic matter and tiny carbonized plant fragments are also present within the shale intervals.
Environment:carbonate indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Museum repositories:UNM
Metadata
Database number:156713
Authorizer:P. Wagner Enterer:P. Wagner
Modifier:M. Carrano Research group:marine invertebrate
Created:2014-05-29 10:54:33 Last modified:2018-02-16 15:57:15
Access level:the public Released:2014-05-29 10:54:33
Creative Commons license:CC BY
Reference information

Primary reference:
51368. B. S. Kues. 2004. Stratigraphy and brachiopod and molluscan paleontology of the Red Tanks Formation (Madera Group) near the Pennsylvanian–Permian boundary, Lucero uplift, west-central New Mexico. In S.G. Lucas, K.E. Zeigler (eds.), Carboniferous–Permian transition at Carrizo Arroyo, central New Mexico 25:143-210 [P. Wagner/P. Wagner]