ammonites

Faixa Nova: Carnian, Brazil

Where & when
Geology
Taphonomy & methods
Metadata & references
Geography
Country:Brazil State/province:Rio Grande do Sul
Coordinates: 29.7° South, 53.8° West (view map)
Paleocoordinates:39.1° South, 15.8° West
Basis of coordinate:based on nearby landmark
Time
Period:Triassic Epoch:Late/Upper Triassic
Stage:Carnian 10 m.y. bin:Triassic 3
Key time interval:Carnian
Age range of interval:228.0 - 216.5 m.y. ago
Stratigraphy
Formation:Santa Maria Member:Alemoa
Stratigraphy comments: Stagonolepis is used to support an Adamanian (latest Carnian) age.
Lithology and environment
Primary lithology: not reported
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Preservation of anatomical detail:good
Associated major elements:all
Collection methods and comments
Collection methods:survey of museum collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:92320
Authorizer:R. Butler Enterer:R. Butler
Research group:vertebrate
Created:2009-11-06 05:53:40 Last modified:2009-11-06 05:53:40
Access level:the public Released:2009-11-06 05:53:40
Reference information
Primary reference:
31121 A. B. Heckert and S. G. Lucas. 2002. South American occurrences of the Adamanian (Late Triassic: latest Carnian) index taxon Stagonolepis (Archosauria: Aetosauria) and their biochronological significance. Journal of Paleontology 76(5):852-863 [R. Butler/R. Butler]