Chaparral Alto San Jose: Early Miocene, Colombia
collected by R. A. Stirton, J.Royo y Gomez, J. Wyatt Durham 1944

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Edentata indet. Cuvier 1798
Cuvier 1798
Stirton 1946
Reptilia - Testudines
Chelonia indet. (Latreille 1800)
Stirton 1946
Reptilia
Langston 1965
U.C.M.P. no. 45787 - holotype (tooth)
Reptilia - Gavialidae
Gavialidae indet. Adams 1854
Langston 1965
U.C.M.P. nos. 37845, 37846, and 38379, three lots of teeth; U.C.M.P. nos. 37869-37871, three teeth
Mammalia
Stirton 1946
Stirton 1947
Mammalia - Panameriungulata - Proterotheriidae
Ameghino 1897
Stirton 1946
Mammalia - Astrapotheria - Astrapotheriidae
Ameghino 1887
Johnson and Madden 1997
UCMP37838; UCMP38733; UCMP37833; UCMP37835; UCMP37836; UCMP37837; UCMP37834 (3 measurements)
Mammalia - Notoungulata - Toxodontidae
Stirton 1946
Ameghino 1894
see common names

Geography
Country:Colombia State/province:Tolima
Coordinates: 3.8° North, 75.2° West (view map)
Paleocoordinates:4.6° North, 69.2° West (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Time
Period: Neogene Epoch: Miocene
10 m.y. bin: Cenozoic 5
Key time interval: Early Miocene
Age range of interval: 23.03 - 15.98 m.y. ago
Stratigraphy
Geological group:Gualanday Formation:Barzalosa
Stratigraphy comments: Originally regarded as Oligocene (e.g. Langston 1965), but now thought to be Early Miocene (e.g. Cadena et al. 2008 [JVP])
Lithology and environment
Primary lithology:yellow sandy breccia
Secondary lithology:blue claystone
Includes fossils?Y
Lithology description: In a thin lense of yellowish sandy bone breccia within a blue clay member of the Gualanday, Barzalosa series.
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Preservation of anatomical detail:medium
Abundance in sediment:few
Fragmentation:frequent
Collection methods and comments
Collection excludes:all microfossils,some genera,species names
Collection methods:selective quarrying,field collection
Reason for describing collection:general faunal/floral analysis
Museum repositories:UCMP
Collectors:R. A. Stirton, J.Royo y Gomez, J. Wyatt Durham Collection dates:1944
Taxonomic list comments:A further description of the fossils is made by R. A. Stirton in 1953
Metadata
Also known as:UCMP V4406
Database number:133440
Authorizer:C. Jaramillo, P. Holroyd, P. Mannion Enterer:M. Vallejo, P. Mannion, P. Holroyd
Modifier:M. Kouvari Research group:vertebrate
Created:2012-09-13 13:56:08 Last modified:2025-02-22 15:12:02
Access level:group members Released:2014-09-13 13:56:08
Creative Commons license:CC0
Reference information

Primary reference:
42295. J. Royo y Gomez. 1945. Los vertebrados del Terciario continental de Colombia. Revista Colombiana de ciencias exactas, físicas y naturales 6(24):496-512 [C. Jaramillo/M. Vallejo]

Secondary references:

43668 S. E. Johnson and R. H. Madden. 1997. Uruguaytheriine Astrapotheres of Tropical South America. In R. F. Kay, R. H. Madden, R. L. Cifelli, J. J. Flynn (eds.), Vertebrate Paleontology in the Neotropics. The Miocene fauna of La Venta, Colombia 355-382 [C. Jaramillo/M. Vallejo/L. Mora-Rojas]
46538 W. Langston. 1965. Fossil crocodilians from Colombia and the Cenozoic history of the Crocodilia in South America. University of California Publications in Geological Sciences 52:1-169 [P. Mannion/P. Mannion/M. Carrano]
43026 R. A. Stirton. 1946. The first lower Oligocene vertebrate fauna from northern South America. Compilación de los estudios geológicos oficiales en Colombia 7:327-341 [C. Jaramillo/M. Vallejo/P. Holroyd]