Cerro Calaveras, type 1 buildup, Puerto Blanco Formation, unit 3, Caborca: Botomian, Mexico
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Archaeocyatha
- Archaeocyathida
- Archaeocyathidae
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Arrythmocricus macdamensis
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Batenevia spinosa
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Archaeocyathus arborensis
Okulitch 1954
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Archaeocyatha
- Archaeocyathida
- Archaeopharetridae
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Protopharetra sp.
Bornemann 1884
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Archaeocyatha
- Archaeocyathida
- Dictyocyathidae
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Dictyocyathus sp.
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| sp. 1 | ||||||||||
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Archaeocyatha
- Archaeocyathida
- Metacyathidae
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Metaldetes cf. fischeri
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Archaeocyatha
- Archaeocyathida
- Loculicyathidae
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Paranacyathus polycladus
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Archaeocyatha
- Ajacicyathida
- Ethmophyllidae
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Cordilleracyathus meridianus
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Aulocricus arellani
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Archaeocyatha
- Ajacicyathida
- Ajacicyathidae
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? Rotundocyathus pusillus
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Chabakoviacea
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Renalcis sp.
Vologdin 1932
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| see common names | ||||||||||
Geography
| Country: | Mexico |
| Coordinates: | 30.3° North, 112.0° West (view map) |
| Paleocoordinates: | 1.4° South, 98.5° West |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | outcrop |
Time
| Period: | Cambrian | Epoch: | Series 2 |
| 10 m.y. bin: | Cambrian 2-3 | ||
| Key time interval: | Botomian | ||
| Age range of interval: | 515.6 - 512.5 m.y. ago |
Stratigraphy
| Formation: | Puerto Blanco | Member: | unit 3 | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: 2 levels (2 m and 19 m thick) within unit 3 | |||||
Lithology and environment
| Primary lithology: | lithified "reef rocks" |
| Lithology description: archaeocyathan framework with encrusting renalcids and abundant fibrous cements | |
| Environment: | reef, buildup or bioherm |
| Geology comments: wave-resistent biostrome and thick kalyptrate reef in a tidally dominated, shelf-margin setting seaward of a carbonate barrier | |
Taphonomy
| Size of fossils: | macrofossils,mesofossils |
| Preservation of anatomical detail: | good |
Collection methods and comments
| Collection methods: | peel or thin section,field collection |
| Reason for describing collection: | paleoecologic analysis |
| Collection method comments: skeletal debris along the external parts of the buildup consists of fragments of trilobites, hyoliths, archaeocyaths, brachiopods, Chancelloria spicules and rare echinoderm plates | |
Metadata
| Also known as: | Reef 1788 | ||
| Database number: | 62866 | ||
| Authorizer: | W. Kiessling | Enterer: | U. Merkel | Research group: | marine invertebrate |
| Created: | 2006-07-31 01:56:55 | Last modified: | 2006-07-31 04:56:55 |
| Access level: | the public | Released: | 2006-07-31 01:56:54 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 18114. | F. Debrenne, A. Gandin, and S. M. Rowland. 1989. Lower Cambrian bioconstructions in Northwestern Mexico (Sonora). Depositional setting, paleoecology and systematics of Archaeocyaths. Géobios 22(2):137-195 [W. Kiessling/U. Merkel/P. Wagner] |