Portezuelo Tontal Fm., Sierra del Tontal, Argentina: Late/Upper Llandeilo, Argentina

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Pterobranchia - Graptoloidea - Dichograptidae
Didymograptus sp. McCoy 1851
Pterobranchia - Graptoloidea - Diplograptidae
Diplograptus sp.
Pterobranchia - Graptoloidea - Dicranograptidae
Dicellograptus sp. Hopkinson 1871
Dicranograptus sp. (Hall 1865)
original and current combination Climacograptus (Dicranograptus)
Pterobranchia - Graptoloidea - Retiolitidae
Glyptograptus sp.
see common names

Geography
Country:Argentina
Coordinates: 31.0° South, 69.0° West (view map)
Paleocoordinates:33.8° South, 133.9° West
Geographic resolution:local area
Time
Period:Ordovician Epoch:Late/Upper Ordovician
10 m.y. bin:Ordovician 4
*Period:Middle Ordovician *Epoch:Late/Upper Llandeilo
*International age/stage:Late/Upper Llandeilo
Key time interval:Late/Upper Llandeilo
Age range of interval:460.90000 - 449.50000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Portezuelo Tontal
Stratigraphic resolution:formation
Lithology and environment
Primary lithology: lithified sandstone
Lithology description: sandy turbidites
Environment:submarine fan
Geology comments: Turbidites
Taphonomy
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:8892
Authorizer:A. Miller Enterer:P. Novack-Gottshall
Modifier:J. Alroy Research group:marine invertebrate
Created:2000-09-02 14:09:07 Last modified:2007-02-21 19:26:07
Access level:the public Released:2000-11-20 13:53:40
Creative Commons license:CC BY
Reference information

Primary reference:

632. A. Cuerda, R. Varela, C. Cingolani and O. Schauer. 1988. Nuevas localidades con graptolitos en la Formacion Portezuelo Tontal (Ordovicico), Sector Septentrional de la Sierra del Tontal, Precordillera de San Juan, Argentina. Ameghiniana 25(2):175-183 [A. Miller/P. Novack-Gottshall/M. Uhen]