Sierra de Cajas: Early/Lower Llanvirn, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rostroconchia
- Ribeirioida
- Technophoridae
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Ribeiria sp.
Sharpe 1853
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Cephalopoda
- Cyclostomiceratidae
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Paracyclostomiceras sp.
Cecioni 1953
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Gastropoda
- Bellerophontida
- Tropidodiscidae
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Peelerophon sp.
Yochelson 1982
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Bivalvia
- Afghanodesmatida
- Tironuculidae
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Natasia sp.
Sánchez 1995
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Bivalvia
- Coxiconchiidae
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Coxiconcha sp.
Babin 1966
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| corrected as Coxiconchia | |||||||
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Rhynchonellata
- Orthida
- Orthidae
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Orthis sp.
Dalman 1828
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Trilobita
- Trinucleida
- Raphiophoridae
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Ampyx sp.
(Dalman 1827)
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| original and current combination Asaphus (Ampyx) | |||||||
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Trilobita
- Trinucleida
- Trinucleidae
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Famatinolithus sp.
Harrington and Leanza 1957
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Trinucleus sp.
Murchison 1839
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Trilobita
- Asaphida
- Asaphidae
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Hoekaspis sp.
Kobayashi 1937
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Merlinia sp.
Fortey and Owens 1987
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Trilobita
- Phacopida
- Calymenidae
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Neseuretus sp.
Hicks 1873
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Synhomalonotus sp.
Pompeckj 1898
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| synonym of Neseuretus | |||||||
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Trilobita
- Phacopida
- Pliomeridae
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Pliomeridius sp.
Leanza and Baldis 1975
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| see common names | |||||||
Geography
| Country: | Argentina | State/province: | Jujuy |
| Coordinates: | 22.9° South, 65.6° West (view map) | ||
| Paleocoordinates: | 42.1° South, 130.7° West | ||
| Geographic resolution: | local area |
Time
| Period: | Ordovician | Epoch: | Middle Ordovician |
| 10 m.y. bin: | Ordovician 2-3 | ||
| *Period: | Middle Ordovician | *Epoch: | Early/Lower Llanvirn |
| *International age/stage: | Early/Lower Llanvirn | ||
| Key time interval: | Early/Lower Llanvirn | ||
| Age range of interval: | 468.40000 - 461.30000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Sepulturas |
| Stratigraphic resolution: | formation |
Lithology and environment
| Primary lithology: | shelly/skeletal,green,red or brown,yellow lithified "shale" |
| Secondary lithology: | grainstone |
| Lithology description: green-yellow and red-violet shale with occasional anhydrite-rich rose and yellow calcarenite, limestone, and shell beds (coquinas) | |
| Environment: | shallow subtidal indet. |
Taphonomy
| Modes of preservation: | body,cast |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | biostratigraphic analysis |
| Collection method comments: JA: marked by Novack-Gottshall without explanation as omitting some genera, some macrofossils, some microfossils, and species names, but apparently complete | |
Metadata
| Database number: | 8778 | ||
| Authorizer: | A. Miller | Enterer: | P. Novack-Gottshall |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2000-08-29 12:06:33 | Last modified: | 2015-03-13 13:36:59 |
| Access level: | the public | Released: | 2000-08-29 12:06:33 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 600. | F. G. Acenolaza. 1968. Geologia estratigrafica de la region de la Sierra de Cajas, Dpto. Humahuaco (Provincia de Jujuy). Revista de la Asociacion Geologica Argentina 23(3):207-222 [A. Miller/P. Novack-Gottshall/P. Wagner] |