USNM806f, Cerros de los Monos, El Antimonio, Sonora: Wordian, Mexico
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Lingulata
- Lingulida
- Discinidae
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Orbiculoidea informal sp. 1
d'Orbigny 1847
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Very rare category | |||||||||
| (1 measurement) | ||||||||||
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Strophomenata
- Productida
- Strophalosiidae
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Heteralosia mexicana n. sp.
Cooper 1953
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Very rare category | |||||||||
| (1 measurement) | ||||||||||
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Strophomenata
- Productida
- Paucispiniferidae
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Liosotella subrugosa
Cooper 1953
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Fairly common category | |||||||||
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Strophomenata
- Productida
- Productidae
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"Dictyoclostus" sp.
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Rare category | |||||||||
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Strophomenata
- Productida
- Echinoconchidae
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Waagenoconcha montpelierensis
(Girty 1910)
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Rare category | |||||||||
| synonym of Bathymyonia nevadensis | ||||||||||
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Strophomenata
- Strophomenida
- Chonetidae
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"Chonetes" sp.
Fischer de Waldheim 1830
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Very rare category | |||||||||
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"Chonetes" monosensis
Cooper 1953
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Very rare category | |||||||||
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Rhynchonellata
- Athyridida
- Athyrididae
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Composita grandis
Cooper 1953
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Very rare category | |||||||||
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Rhynchonellata
- Athyridida
- Neoretziidae
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Hustedia meekana
(Shumard 1858)
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Fairly common category | |||||||||
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= Hustedia shumardi
Torres-Martínez et al. 2016
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Torres-Martínez et al. 2016 | |||||||||
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Rhynchonellata
- Spiriferinida
- Reticulariinidae
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Spiriferellina sonorensis
Cooper 1953
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Common category | |||||||||
| recombined as Reticulariina sonorensis | ||||||||||
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Rhynchonellata
- Rhynchonellida
- Rhynchoporidae
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Rhynchopora taylori
Girty 1910
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Very rare category | |||||||||
| New subspecies "rotundata" | ||||||||||
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Rhynchonellata
- Rhynchonellida
- Wellerellidae
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Wellerella lemasi
Cooper 1953
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Common category | |||||||||
| Subspecies "minor" | ||||||||||
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Rhynchonellata
- Terebratulida
- Notothyrididae
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Glossothyropsis magna
Cooper 1953
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Rare category | |||||||||
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Rhynchonellata
- Terebratulida
- Cryptonellidae
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Heterelasma contrerasi n. sp.
Cooper 1953
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Rare category | |||||||||
| (2 measurements) | ||||||||||
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Rhynchonellata
- Terebratulida
- Dielasmatidae
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Dielasma floresi
Cooper 1953
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Rare category | |||||||||
| (1 measurement) | ||||||||||
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Gastropoda
- Euomphalina
- Euomphalidae
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? Straparollus informal sp. A
de Montfort 1810
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Very rare category | |||||||||
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Bivalvia
- Nuculida
- Nuculidae
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"Nucula" sp.
Lamarck 1799
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Rare category | |||||||||
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Bivalvia
- Myalinida
- Myalinidae
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Myalina sp.
de Koninck 1842
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Very rare category | |||||||||
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Bivalvia
- Pectinida
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Pectinoidea indet.
Rafinesque 1815
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Very rare category | |||||||||
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Anthozoa
- Stauriida
- Lophophyllidae
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Lophophyllidium sp.
Grabau 1928
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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 4 |
| Key time interval: | Wordian | ||
| Age range of interval: | 266.90000 - 264.28000 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: | 40815 | ||
| Authorizer: | D. Bottjer, M. Clapham | Enterer: | M. Clapham |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2004-07-01 11:44:31 | Last modified: | 2004-07-01 16:39:27 |
| Access level: | the public | Released: | 2004-07-01 11:44:31 |
| 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] |