Locality Za-81. Rio Guaviere: Tremadoc, Colombia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Agnostida - Metagnostidae
Geragnostus tilcuyensis Kobayashi 1937
Trilobita - Asaphida - Asaphidae
Trilobita - Asaphida - Remopleurididae
Trilobita - Olenida - Olenidae
Trilobita
Rhynchonellata - Orthida - Plectorthidae
Lingulata - Acrotretida - Acrotretidae
Lingulata - Lingulida - Obolidae
Gastropoda - Bellerophontida - Tropidodiscidae
see common names

Geography
Country:Colombia
Coordinates: 3.6° North, 73.8° West (view map)
Paleocoordinates:36.4° South, 129.0° West (Wright 2013)
Geographic resolution:local area
Time
Period: Ordovician Epoch: Early Ordovician
Stage: Tremadocian 10 m.y. bin: Ordovician 1
*Period:Early/Lower Ordovician *Epoch:Early/Lower Tremadoc
*International age/stage:Early/Lower Tremadoc
Key time interval: Tremadoc
Age range of interval: 486.4 - 477.1 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Guapayito
Stratigraphic resolution:formation
Stratigraphy comments: Most likely the Guapayito Fm., but possibly not.
Lithology and environment
Primary lithology:gray lithified argillaceous,sandy "limestone"
Lithology description: dark gray, fine-grained limestone with quartz grains and mica flakes
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
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:8862
Authorizer:A. Miller Enterer:P. Novack-Gottshall
Modifier:P. Wagner Research group:marine invertebrate
Created:2000-09-02 12:19:53 Last modified:2025-02-22 15:12:02
Access level:the public Released:2000-09-02 12:19:53
Creative Commons license:CC0
Reference information

Primary reference:
643. H. J. Harrington and M. Kay. 1951. Cambrian and Ordovician faunas of Eastern Colombia. Journal of Paleontology 25(5):655-668 [A. Miller/P. Novack-Gottshall/J. Alroy]