Where: Argentina (30.0° S, 69.0° W: paleocoordinates 36.9° S, 130.2° W)
• local area-level geographic resolution
When: San Juan Formation, Arenig (478.6 - 466.0 Ma)
• Lower Arenig section of San Juan Fm.
• formation-level stratigraphic resolution
Environment/lithology: shallow subtidal; lithified, gray, green, argillaceous, cherty/siliceous limestone and marl
Primary reference: M. Keller, F. Canas, O. Lehnert and N. E. Vaccari. 1994. The Upper Cambrian and Lower Ordovician of the Precordillera (Western Argentina): Some stratigraphic reconsiderations. Newsletters on Stratigraphy 31(2):115-132 [A. Miller/P. Novack-Gottshall/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 8744: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 28.08.2000
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Rhynchonellata | |
Archaeorthis sp. Schuchert and Cooper 1931 | |
Hesperonomia sp. Ulrich and Cooper 1936 | |
Orthidium sp. Hall and Clarke 1892 | |
Strophomenata | |
Huacoella sp. Benedetto and Herrera 1993
Leptella sp. Hall and Clarke 1892
"Petroria sp." = Leptella (Petroria) | |
? Leptellina sp. Ulrich and Cooper 1936 PJW: was ? Leptellina sp., but this entry probably was in error; that is Llanvirn in this formation.
| |
Tritoechia sp. Ulrich and Cooper 1936 | |
Conodonta | |
Stolodus sp. Lindström 1955 conodont | |
Ansella sp. conodont | |
Paracordylodus sp. Lindström 1955 conodont | |
Bergstroemognathus sp. Serpagli 1974 conodont | |
Oepikodus sp. Lindström 1955 conodont | |
Oelandodus sp. van Wamel 1974 conodont | |
Polonodus sp. Dzik 1976 conodont | |
Acodus sp. Pander 1856 conodont
Tropodus sp. Kennedy 1980 conodont | |
Jumudontus sp. Cooper 1981 conodont | |
Prioniodus sp. Pander 1856 conodont
Reutterodus sp. conodont | |
Ulrichodina sp. Furnish 1938 conodont | |
Cornuodus sp. conodont | |
Drepanodus sp. Pander 1856 conodont
Protopanderodus sp. Lindström 1971 conodont
Juanognathus sp. Serpagli 1974 conodont
Scolopodus sp. conodont | |
Drepanoistodus sp. Lindstrom 1971 conodont
Paroistodus sp. Lindström 1971 conodont | |
Clavohamulus sp. conodont | |
Fahraeosodus sp. Stouge and Bagnoli 1988 conodont |