Section 06. Franklin Mountain. Small ridge 0.7 mile S55˚W. of Sugarloaf Mountain: Richmondian, Texas

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Rhynchonellata - Rhynchonellida - Rhynchotrematidae
Hypsiptycha neenah (Whitfield 1882)
Howe 1967
Rhynchotrema iowense Wang 1949
Howe 1967
Rhynchonellata - Orthida - Plaesiomyidae
Plaesiomys subquadratus (Hall 1847)
Plaesiomys subquadratus cutterensis
    = Plaesiomys cutterensis Howe 1966
Wright and Stigall 2013
Strophomenata - Strophomenida - Sowerbyellidae
Thaerodonta mucronata Howe 1965
recombined as Eochonetes mucronata
Thaerodonta mucronata scabra
see common names

Geography
Country:United States State/province:Texas County:El Paso
Coordinates: 31.8° North, 106.5° West (view map)
Paleocoordinates:17.4° South, 76.9° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Ordovician Epoch:Late/Upper Ordovician
Stage:Katian 10 m.y. bin:Ordovician 5
Key time interval:Richmondian Conodont zone: Aphelognathus grandis
Age range of interval:449.80000 - 446.00000 m.y. ago
Stratigraphy
Geological group:Montoya Formation:Cutter
Regional section:Formation Regional bed:60 ft
Regional order:bottom to top
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: lithified argillaceous,cherty/siliceous dolomite
Includes fossils?Y
Environment:deep subtidal indet. Tectonic setting:passive margin
Geology comments: Environment inferred by SMH from lithology and bedding
Taphonomy
Modes of preservation:body,replaced with silica
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Museum repositories:USNM
Metadata
Database number:165281
Authorizer:P. Wagner Enterer:P. Wagner
Modifier:P. Wagner Research group:marine invertebrate
Created:2015-01-16 22:02:17 Last modified:2015-01-16 22:20:20
Access level:the public Released:2015-01-16 22:02:17
Creative Commons license:CC BY
Reference information

Primary reference:

9484. H. J. Howe. 1965. Dalmanellidae from the Montoya Group (Ordovician) of Trans-Pecos Texas. Journal of Paleontology 39(2):235-247 [S. Holland/S. Holland/S. Holland]

Secondary references:

3941 H. J. Howe. 1967. Rhynchonellacea From the Montoya Group (Ordovician) of Trans-Pecos Texas. Journal of Paleontology 41(4):845-860 [S. Holland/T. Hanson]
64957 D. F. Wright and A. L. Stigall. 2013. Phylogenetic revision of the Late Ordovician orthid brachiopod genera Plaesiomys and Hebertella from Laurentia. Journal of Paleontology 87(6):1107-1128 [P. Wagner/P. Wagner]