PBDB Collection

UCMP Locality V4932: Laventan, Colombia

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Reptilia

	Caiman neivensis (Mook 1941)	Langston 1965
	recombined as Purussaurus neivensis
	Museo del Servicio Geologico in Bogota (skull)
Mammalia - Megatheriidae

	Megatheriinae indet. Gill 1872	Hirschfeld 1985
	Gill 1872, UCMP 39593
Mammalia - Mylodontidae

	Mylodontidae indet. Ameghino 1889	Hirschfeld 1985
	Scelidothere indet. UCMP 39547

	Pseudoprepotherium confusum Hirschfeld 1985	Hirschfeld 1985
	recombined as Magdalenabradys confusum
	Hirschfeld 1985, UCMP 39772, 39587, 39890, 39588, 39594 (53 measurements)

	cf. Neonematherium sp. Ameghino 1904	Hirschfeld 1985
	Ameghino 1904, UCMP 39275
	= Nematherium sp. Ameghino 1887	Miño-Boilini and Brandoni 2023
	UCMP 39275
Mammalia - Notoungulata - Interatheriidae

	Miocochilius anomopodus Stirton 1953	Stirton 1953
	UCMP 39276, 39651, 39891, 39942, 39943, 39945, 39946,
Mammalia - Notoungulata - Leontiniidae

	Huilatherium pluripicatum Villarroel and Guerrero Diaz 1985	Villarroel and Colwell Danis 1997
	UCMP 39636 (3 measurements)
Mammalia - Notoungulata - Toxodontidae

	Pericotoxodon platignathus Madden 1997	Madden 1997
	UCMP 39549
Mammalia - Astrapotheria - Astrapotheriidae

	Xenastrapotherium kraglievichi Cabrera 1929	Johnson and Madden 1997
	UCMP 39818 (4 measurements)
Mammalia - Rodentia - Dinomyidae

	cf. Simplimus sp. Ameghino 1904	Walton 1997
	Specimen nº UCMP 136479 This specimen was reported inside of Dinomyidae family
Mammalia - Panameriungulata - Proterotheriidae

	Megadolodus molariformis McKenna 1956
	McKenna 1956 Specimen U.C. 39270 (12 measurements)
see common names

Geography

Country:	Colombia	State/province:	Huila
Coordinates:	3.3° North, 75.2° West (view map)
Paleocoordinates:	2.7° North, 72.6° West
Basis of coordinate:	estimated from map
Geographic resolution:	small collection

Time

Period:	Neogene	Epoch:	Miocene
10 m.y. bin:	Cenozoic 5-6
Key time interval:	Laventan	Mammal zone:	Laventan
Age range of interval:	13.70000 - 10.90000 m.y. ago
Age estimate:	12.649 ± 0.258 to 12.486 ± 0.111 Ma (Ar/Ar)

Stratigraphy

Geological group:	Honda
Stratigraphic resolution:	group of beds
Stratigraphy comments: San Nicolas unit, Honda group upper levels of the La Victoria Formation and lower levels of the Villavieja Formation

Lithology and environment

Primary lithology:	concretionary,nodular,gray calcareous claystone
Includes fossils?	Y
Lithology description: Variegated gray, buff, and rusty claystones containing much calcareous material, including nodules and concretions
Environment:	terrestrial indet.

Taphonomy

Modes of preservation:	body
Size of fossils:	macrofossils
Preservation of anatomical detail:	good
Abundance in sediment:	few
Fragmentation:	occasional

Collection methods and comments

Collection size:	1 specimens
Reason for describing collection:	taxonomic analysis
Museum repositories:	UCMP

Metadata

Also known as:	Megadolodus railway; Railway Bridge Locality; V-4932
Database number:	133693
Authorizer:	C. Jaramillo, A. Cárdenas, P. Mannion	Enterer:	M. Vallejo, L. Mora-Rojas, P. Mannion
Modifier:	P. Mannion	Research group:	vertebrate
Created:	2012-09-25 11:29:38	Last modified:	2023-10-06 10:43:03
Access level:	group members	Released:	2015-09-25 11:29:38
Creative Commons license:	CC BY

Reference information

Primary reference:

43101.

M. McKenna. 1956. Survival of primitive Notoungulates and Condylarths into the Miocene of Colombia. American Journal of Science 254:736-743 [C. Jaramillo/M. Vallejo/A. Cárdenas]

Secondary references:

45203		S. E. Hirschfeld. 1985. Ground sloths from the Friasian La Venta fauna, with additions to the pre-Frasian Coyaima fauna of Colombia, South America. University of California Publications in Geological Sciences 128:1-91 [C. Jaramillo/M. Vallejo/A. Cárdenas]
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]
46970		R. H. Madden. 1997. A new Toxodontid Notoungulate. In R. F. Kay, R. H. Madden, J. J. Flynn. (eds.), Vertebrate Paleontology in the Neotropics. The Miocene fauna of La Venta, Colombia 335-354 [C. Jaramillo/M. Vallejo/A. Cárdenas]
50755		R. H. Madden, J. Guerrero, R. F. Kay, J. J. Flynn, C. C. Swischer and A. H. Walton. 1997. The Laventan Stage and Age. 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 499-519 [C. Jaramillo/J. Carrillo]
85978		A. R. Miño-Boilini and D. Brandoni. 2023. Nematherium (Xenarthra, Folivora) from the Serravallian of La Venta, Department of Huila, Colombia; chronological and biogeographical implications. Andean Geology 50(3):436-446 [P. Mannion/P. Mannion]
43342		R. A. Stirton. 1953. A new genus of interatheres from the Miocene of Colombia. California University Department of Geological Sciences B 29(6):265-347 [C. Jaramillo/M. Vallejo/A. Cárdenas]
46952		C. Villarroel and J. Colwell Danis. 1997. New Leontiniid Notoungulate. In R. F. Kay, R. H. Madden, J. J. Flynn. (eds.), Vertebrate Paleontology in the Neotropics. The Miocene fauna of La Venta, Colombia 303-318 [C. Jaramillo/M. Vallejo/A. Cárdenas]
46973		A. H. Walton. 1997. Rodents. In R. F. Kay, R. H. Madden, J. J. Flynn. (eds.), Vertebrate Paleontology in the Neotropics. The Miocene fauna of La Venta, Colombia 392-409 [C. Jaramillo/M. Vallejo/A. Cárdenas]