Late Arenig/Lower Llanvirn section of San Juan Fm., Huaco and Agua Hedionda, Arg: Arenig - Early/Lower Llanvirn, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Barnescoceras sp.
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Stenolaemata
- Trepostomida
- Monticuliporidae
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Monticulipora sp.
d'Orbigny 1850
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Rhynchonellata
- Orthida
- Orthidae
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Orthis sp.
Dalman 1828
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Cephalopoda
- Tarphycerida
- Trocholitidae
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Curtoceras sp.
Ulrich et al. 1942
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Cephalopoda
- Orthocerida
- Dawsonoceratidae
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Anaspyroceras sp.
Shimizu and Obata 1935
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Cephalopoda
- Lituitida
- Lituitidae
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Angelinoceras sp.
Hyatt 1894
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Cephalopoda
- Bisonocerida
- Piloceratidae
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Piloceras sp.
Salter 1859
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Cephalopoda
- Ellesmerocerida
- Protocycloceratidae
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Cyptendoceras sp.
Ulrich and Foerste 1936
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Protocycloceras sp.
Hyatt 1900
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Cephalopoda
- Ellesmerocerida
- Ellesmeroceratidae
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Oelandoceras sp.
Foerste 1932
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Robsonoceras sp.
Ulrich and Foerste 1933
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Gastropoda
- Euomphalina
- Macluritidae
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Maclurites sp.
Le Sueur 1818
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Trilobita
- Corynexochida
- Leiostegiidae
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Annamitella sp.
Mansuy 1920
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Trilobita
- Corynexochida
- Illaenidae
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Illaenus sp.
Dalman 1827
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| see common names | |||||||
Geography
| Country: | Argentina |
| Coordinates: | 30.0° South, 69.0° West (view map) |
| Paleocoordinates: | 36.6° South, 130.1° West |
| Geographic resolution: | local area |
Time
| Period: | Ordovician |
| *Period: | Early/Lower Ordovician - Middle Ordovician |
| *International age/stage: | Late/Upper Arenig - Early/Lower Llanvirn |
| Key time interval: | Arenig - Early/Lower Llanvirn |
| Age range of interval: | 477.70000 - 461.30000 m.y. ago |
| * legacy (obsolete) database fields | |
Stratigraphy
| Formation: | San Juan | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: Late Arenig/Lower Llanvirn section of San Juan Fm. | |||||
Lithology and environment
| Primary lithology: | concretionary,gray,green lithified "limestone" |
| Secondary lithology: | marl |
| Lithology description: light gray nodular limestone with gray-green marl intercalations | |
| Environment: | deep subtidal shelf |
Taphonomy
Collection methods and comments
| Collection excludes: | some genera,some macrofossils,some microfossils,species names |
| Reason for describing collection: | biostratigraphic analysis |
| Collection method comments: Cephalopod taxonomy and biostrat. | |
Metadata
| Database number: | 8720 | ||
| Authorizer: | A. Miller | Enterer: | P. Novack-Gottshall | Research group: | marine invertebrate |
| Created: | 2000-08-28 10:24:55 | Last modified: | 2003-07-18 18:01:39 |
| Access level: | the public | Released: | 2000-11-20 13:53:40 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 605. | F. G. Acenolaza, F.R. Durand, and R.D. Taddei. 1977. Nautiloideos Ordovicicos de la Precordillera Argentina. Fauna de Huaco, Provincia de San Juan. Acta Geologica Lilloana 13(8):219-242 [A. Miller/P. Novack-Gottshall] |