USNM806b, Cerros de los Monos, El Antimonio, Sonora: Wordian, Mexico
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa
- Stauriida
- Lophophyllidae
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Lophophyllidium sp.
Grabau 1928
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Fairly common category | |||||||||
Strophomenata
- Productida
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Marginifera informal sp. 2
Waagen 1884
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Rare category | |||||||||
Strophomenata
- Productida
- Paucispiniferidae
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Liosotella subrugosa
Cooper 1953
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Rare category | |||||||||
Strophomenata
- Productida
- Echinoconchidae
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Waagenoconcha montpelierensis
(Girty 1910)
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Rare category | |||||||||
synonym of Bathymyonia nevadensis | ||||||||||
Rhynchonellata
- Rhynchonellida
- Wellerellidae
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Wellerella lemasi
Cooper 1953
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Common category | |||||||||
Subspecies "minor" (1 measurement) | ||||||||||
Rhynchonellata
- Spiriferinida
- Reticulariinidae
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Spiriferellina sonorensis n. sp.
Cooper 1953
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Common category | |||||||||
recombined as Reticulariina sonorensis | ||||||||||
(1 measurement) | ||||||||||
Rhynchonellata
- Athyridida
- Neoretziidae
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Hustedia meekana
(Shumard 1858)
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Fairly common category | |||||||||
(2 measurements) | ||||||||||
= Hustedia shumardi
Torres-Martínez et al. 2016
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Torres-Martínez et al. 2016 | |||||||||
Rhynchonellata
- Athyridida
- Athyrididae
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Composita cf. grandis
Cooper 1953
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Very rare category | |||||||||
Rhynchonellata
- Terebratulida
- Dielasmatidae
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Dielasma sp.
King 1856
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Rare category | |||||||||
Rhynchonellata
- Terebratulida
- Cryptonellidae
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Heterelasma contrerasi
Cooper 1953
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Rare category | |||||||||
(1 measurement) | ||||||||||
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 limestone beds |
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: | bulk,field collection |
Reason for describing collection: | taxonomic analysis |
Metadata
Database number: | 40810 | ||
Authorizer: | D. Bottjer, M. Clapham | Enterer: | M. Clapham |
Modifier: | M. Clapham | Research group: | marine invertebrate |
Created: | 2004-07-01 11:20:34 | Last modified: | 2004-07-01 16:35:25 |
Access level: | the public | Released: | 2004-07-01 11:20:34 |
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:
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] |