USNM806g, Cerros de los Monos, El Antimonio, Sonora: Wordian, Mexico

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Porifera indet. Grant 1836
Rare category
Anthozoa - Stauriida - Lophophyllidae
Lophophyllidium sp. Grabau 1928
Fairly common category
Cephalopoda - Goniatitida - Cyclolobidae
Waagenoceras dieneri Böse 1919
Very rare category
(1 measurement)
Scaphopoda - Dentaliida - Prodentaliidae
Plagioglypta canna (White 1874)
Rare category
recombined as Prodentalium canna
Strophomenata - Productida - Paucispiniferidae
Liosotella rugosa Cooper 1953
Rare category
Liosotella subrugosa Cooper 1953
Rare category
Strophomenata - Productida - Echinoconchidae
Waagenoconcha montpelierensis (Girty 1910)
Rare category
synonym of Bathymyonia nevadensis
Strophomenata - Productida - Productellidae
Dictyoclostus depressus Cooper 1953
Rare category
recombined as Thamnosia depressa
New subspecies (unnamed)
Rhynchonellata - Rhynchonellida - Wellerellidae
Wellerella lemasi Cooper 1953
Common category
New subspecies "minor" (1 measurement)
Rhynchonellata - Rhynchonellida - Rhynchoporidae
Rhynchopora taylori Girty 1910
Very rare category
New subspecies "rotundata" (1 measurement)
Rhynchonellata - Athyridida - Neoretziidae
Hustedia meekana (Shumard 1858)
Rare category
    = Hustedia shumardi Torres-Martínez et al. 2016
Torres-Martínez et al. 2016
Rhynchonellata - Athyridida - Athyrididae
Composita grandis Cooper 1953
Very rare category
(1 measurement)
Rhynchonellata - Terebratulida - Dielasmatidae
Dielasma floresi n. sp. Cooper 1953
Rare category
(1 measurement)
Rhynchonellata - Terebratulida - Notothyrididae
Glossothyropsis magna Cooper 1953
Rare category
(1 measurement)
Rhynchonellata - Terebratulida - Cryptonellidae
Heterelasma contrerasi Cooper 1953
Rare category
see common names

Geography
Country:Mexico State/province:Sonora
Coordinates: 30.8° North, 112.6° West (view map)
Paleocoordinates:11.7° North, 40.3° West
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period:Permian Epoch:Guadalupian
Stage:Wordian 10 m.y. bin:Permian 3
Key time interval:Wordian
Age range of interval:268.80000 - 265.10000 m.y. ago
Stratigraphy
Formation:Antimonio Local bed:Spiriferellina Zone
Stratigraphy comments: "Monos Beds"; Spiriferellina Zone is uppermost in the succession
Lithology and environment
Primary lithology:blue cherty/siliceous "limestone"
Lithology description: Purer, bluish limestone with abundant dark brown nodular masses of chert
Environment:marine indet.
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
Metadata
Database number:40816
Authorizer:D. Bottjer, M. Clapham Enterer:M. Clapham
Modifier:M. Clapham Research group:marine invertebrate
Created:2004-07-01 11:58:13 Last modified:2004-07-01 16:40:03
Access level:the public Released:2004-07-01 11:58:13
Creative Commons license:CC BY
Reference information

Primary reference:

11030. G. A. Cooper, C. O. Dunbar, H. Duncan, A. K. Miller, and J. B. Knight. 1953. Permian fauna at El Antimonio, western Sonora, Mexico. Smithsonian Miscellaneous Collections 119(2):1-111 [D. Bottjer/M. Clapham/P. Wagner]

Secondary references:

33609 A. K. Miller. 1945. A Permian ammonoid from Sonora. Journal of Paleontology 19:22 [M. Clapham/M. Clapham]
61293 M. A. Torres-Martínez, F. Sour-Tovar, and R. Barragán. 2016. Permian (Leonardian) brachiopods from Paso Hondo Formation, Chiapas, southern Mexico. Paleobiogeographical implications. Journal of South American Earth Sciences 71:71-81 [M. Clapham/M. Clapham/M. Clapham]