Arenig section of San Juan Fm., Quebrada Ancha and Talacasto, Argentina: Arenig, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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Arancibia sp.
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Nexospingia sp.
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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) | |||||||
Trilobita
- Proetida
- Telephinidae
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Carolinites sp.
Kobayashi 1940
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Opipeuter sp.
Fortey 1974
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Trilobita
- Proetida
- Bathyuridae
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Peltabellia sp.
Whittington 1953
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Uromystrum sp.
Whittington 1953
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Trilobita
- Phacopida
- Pliomeridae
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Ectenonotus sp.
Raymond 1920
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Benedettia sp.
Toro and Mondali 1981
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? Pliomerops sp.
Raymond 1905
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Trilobita
- Phacopida
- Cheiruridae
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Cyrtometopus sp.
Angelin 1854
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Trilobita
- Harpetida
- Harpetidae
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Selenoharpes sp.
Whittington 1950
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synonym of Scotoharpes | |||||||
Trilobita
- Corynexochida
- Leiostegiidae
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Leiostegium sp.
Raymond 1913
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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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Platillaenus sp.
Jaanusson 1954
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Rostroconchia
- Ribeirioida
- Ischyriniidae
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Tolmachovia sp.
Howell and Kobayashi 1936
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Sánchez 1998 | ||||||
Rostroconchia
- Ribeirioida
- Technophoridae
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Ribeiria cf. compressa
Whitfield 1886
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Sánchez 1998 | ||||||
Strophomenata
- Strophomenida
- Taffiidae
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Leptella sp.
Hall and Clarke 1892
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Petroria sp.
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spelled with current rank as Leptella (Petroria) | |||||||
Huacoella sp.
Benedetto and Herrera 1993
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Niquivilia sp.
Benedetto and Herrera 1993
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Strophomenata
- Billingsellida
- Polytoechiidae
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Tritoechia sp.
Ulrich and Cooper 1936
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Acanthotoechia sp.
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Rhynchonellata
- Orthida
- Platystrophiidae
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Platystrophia sp.
King 1850
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Rhynchonellata
- Orthida
- Plectorthidae
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Nanorthis sp.
Ulrich and Cooper 1936
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Rhynchonellata
- Orthida
- Orthidae
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Paralenorthis sp.
Havlicek and Branisa 1980
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Taphrorthis sp.
Cooper 1956
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Rhynchonellata
- Orthida
- Orthidiellidae
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Orthidium sp.
Hall and Clarke 1892
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Rhynchonellata
- Orthida
- Archaeorthidae
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Archaeorthis sp.
Schuchert and Cooper 1931
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Rhynchonellata
- Orthida
- Hesperonomiidae
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Hesperonomia sp.
Ulrich and Cooper 1936
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Monorthis sp.
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Rhynchonellata
- Pentamerida
- Tetralobulidae
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Punctolira sp.
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Rhynchonellata
- Pentamerida
- Camerellidae
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Idiostrophia sp.
Ulrich and Cooper 1936
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Stenolaemata
- Trepostomida
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Nicholsonella sp.
Ulrich 1890
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Demospongiae
- Anthaspidellidae
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Archaeoscyphia sp.
Hinde 1889
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Demospongiae
- Streptosolenidae
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Allosaccus sp.
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Hudsonospongia sp.
Raymond and Okulitch 1940
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Eospongia sp.
Billings 1861
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see common names |
Geography
Country: | Argentina |
Coordinates: | 31.0° South, 69.0° West (view map) |
Paleocoordinates: | 36.0° South, 130.8° West |
Geographic resolution: | local area |
Time
Period: | Ordovician | ||
10 m.y. bin: | Ordovician 2 | ||
*Period: | Early/Lower Ordovician | *Epoch: | Arenig |
Key time interval: | Arenig | ||
Age range of interval: | 477.70000 - 468.40000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | San Juan | ||||
Stratigraphic resolution: | formation | ||||
Stratigraphy comments: Arenig section of San Juan Fm. |
Lithology and environment
Primary lithology: | gray lithified "limestone" |
Secondary lithology: | dolomite |
Lithology description: light to dark gray limestone and dolomite | |
Environment: | shallow subtidal indet. |
Taphonomy
Collection methods and comments
Collection excludes: | species names |
Reason for describing collection: | paleoecologic analysis |
Metadata
Database number: | 8721 | ||
Authorizer: | A. Miller, P. Wagner | Enterer: | P. Novack-Gottshall, P. Wagner | Research group: | marine invertebrate |
Created: | 2000-08-28 10:25:02 | Last modified: | 2001-08-16 13:10:41 |
Access level: | the public | Released: | 2000-11-20 13:53:40 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
668. | T. M. Sanchez and B.G. Waisfeld. 1995. Benthic assemblages in the northwestern of Gondwana: A test of the Ordovician evolutionary radiation model. In J.D. Cooper, M.L. Droser, S.C. Finney (eds.), Ordovician Odyssey: Short papers for the seventh international symposium on the Ordovician system 409-412 [A. Miller/P. Novack-Gottshall/P. Wagner] |
Secondary references:
666 | T. M. Sanchez. 1986. La presencia de la familia Eopteriidae (Mollusca, Rostroconchia) en la Formacion San Juan (Ordovicico Inferior) de la Precordillera Argentina. Actas del IV congreso Argentino de paleontologia y bioestratigrafia - Simposio: Bioestratigrafia del Paleozoico Inferior. Ed. A. Cuerda 1:125-131 [A. Miller/P. Novack-Gottshall] | |
16316 | T. M. Sánchez. 1998. Rostroconchia (Mollusca, Diasoma) en la formación San Juan (Ordovíco temprano), Precordillera Argentina. Ameghiniana 35(3):345-347 [P. Wagner/P. Wagner/J. Alroy] |