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
Arancibia sp.
Nexospingia sp.
Strophomenata - Billingsellida - Polytoechiidae
Acanthotoechia sp.
Tritoechia sp. Ulrich and Cooper 1936
Strophomenata - Strophomenida - Taffiidae
Leptella sp. Hall and Clarke 1892
Petroria sp.
spelled with current rank as Leptella (Petroria)
Rhynchonellata - Pentamerida - Camerellidae
Idiostrophia sp. Ulrich and Cooper 1936
Rhynchonellata - Pentamerida - Tetralobulidae
Punctolira sp.
Rhynchonellata - Orthida - Orthidiellidae
Orthidium sp. Hall and Clarke 1892
Rhynchonellata - Orthida - Hesperonomiidae
Hesperonomia sp. Ulrich and Cooper 1936
Monorthis sp.
Rhynchonellata - Orthida - Orthidae
Paralenorthis sp. Havlicek and Branisa 1980
Taphrorthis sp. Cooper 1956
Rhynchonellata - Orthida - Archaeorthidae
Archaeorthis sp. Schuchert and Cooper 1931
Rhynchonellata - Orthida - Platystrophiidae
Platystrophia sp. King 1850
Rhynchonellata - Orthida - Plectorthidae
Nanorthis sp. Ulrich and Cooper 1936
Stenolaemata - Trepostomida
Nicholsonella sp. Ulrich 1890
Rostroconchia - Ribeirioida - Ischyriniidae
Tolmachovia sp. Howell and Kobayashi 1936
Sánchez 1998
Rostroconchia - Ribeirioida - Technophoridae
Ribeiria cf. compressa Whitfield 1886
Sánchez 1998
Trilobita - Corynexochida - Leiostegiidae
Annamitella sp. Mansuy 1920
Leiostegium sp. Raymond 1913
Trilobita - Corynexochida - Illaenidae
Illaenus sp. Dalman 1827
Platillaenus sp. Jaanusson 1954
Trilobita - Proetida - Telephinidae
Carolinites sp. Kobayashi 1940
Opipeuter sp. Fortey 1974
Trilobita - Proetida - Bathyuridae
Peltabellia sp. Whittington 1953
Uromystrum sp. Whittington 1953
Trilobita - Phacopida - Pliomeridae
Ectenonotus sp. Raymond 1920
Benedettia sp. Toro and Mondali 1981
? Pliomerops sp. Raymond 1905
Trilobita - Phacopida - Cheiruridae
Cyrtometopus sp. Angelin 1854
Trilobita - Harpetida - Harpetidae
Selenoharpes sp. Whittington 1950
synonym of Scotoharpes
Trilobita - Trinucleida - Raphiophoridae
Ampyx sp. (Dalman 1827)
original and current combination Asaphus (Ampyx)
Demospongiae - Anthaspidellidae
Archaeoscyphia sp. Hinde 1889
Demospongiae - Streptosolenidae
Hudsonospongia sp. Raymond and Okulitch 1940
Allosaccus sp.
Eospongia sp. Billings 1861
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]