Miquihuana1-2: Valanginian, Mexico
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Cardiida
- Cardiidae
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Cardium sp.
Linnaeus 1758
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Bivalvia
- Pholadida
- Pleuromyidae
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Pleuromya sp.
(Meek 1873)
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| original and current combination Myacites (Pleuromya) | ||||||||||
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Bivalvia
- Pectinida
- Pectinidae
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Pecten sp.
Müller 1776
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| "sp. A" - originally entered as "Pecten sp. A" | ||||||||||
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Pecten sp.
Müller 1776
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| "sp. B" - originally entered as "Pecten sp. B" | ||||||||||
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Bivalvia
- Ostreida
- Gryphaeidae
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Exogyra sp.
Say 1820
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Exogyra reedi
Imlay 1937
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Rhynchonellata
- Terebratulida
- Terebratulidae
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Terebratula tamaulipana
Imlay 1937
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| (1 measurement) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Mexico | State/province: | Tamaulipas |
| Coordinates: | 23.6° North, 99.8° West (view map) | ||
| Paleocoordinates: | 20.5° North, 53.2° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
| Stage: | Valanginian | 10 m.y. bin: | Cretaceous 1 | *Epoch: | Neocomian |
| Key time interval: | Valanginian | ||
| Age range of interval: | 139.80000 - 132.60000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Local section: | Miquihuana | Local bed: | 2 |
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | "limestone" |
| Geology comments: limestone, dk. grey, dense, locally conglomeratic; one thick bed of dk. blue-grey crystalline limestone contains corals, small particles of rusty chert; overlies red beds with an angular unconformity of 8-10 degrees | |
Taphonomy
| Modes of preservation: | body,original calcite |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 2124 | ||
| Authorizer: | M. Patzkowsky | Enterer: | K. Layou |
| Modifier: | C. Visaggi | Research group: | marine invertebrate |
| Created: | 1999-06-22 13:52:42 | Last modified: | 2004-03-11 16:25:06 |
| Access level: | the public | Released: | 2000-11-20 13:53:14 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 64. | R. W. Imlay. 1937. Lower Neocomian fossils from the Miquihuana region, Mexico. Journal of Paleontology 11(7):552-574 [M. Patzkowsky/K. Layou/J. Alroy] |