Toxodont Locality; UCMP V4519 (Miocene of Colombia)

Also known as Scleromys Villavieja

Where: Huila, Colombia (3.3° N, 75.2° W: paleocoordinates 2.7° N, 72.6° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Laventan mammal zone, Villavieja Formation (Honda Group), Laventan (13.8 - 11.0 Ma)

• Monkey Unit (Fields 1959)

•The Honda Group is constrained by radiometric and paleomagnetic evidence to between approximately 13.5 Ma–11.8 Ma (Flynn et al., 1996; Guerrero, 1996; Madden et al., 1996).

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; gray claystone

• Gray claystone

Size classes: macrofossils, mesofossils

Collected by R. W. Fields and R. A. Stirton in 1945 and 1949; reposited in the UCMP

Primary reference: R. W. Fields. 1957. Hystricomorph rodents from the late Miocene of Colombia, South America. University of California Publications in Geological Sciences 32:273-404 [C. Jaramillo/M. Vallejo/A. Cardenas ]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 134806: authorized by Carlos Jaramillo, entered by Maria Vallejo on 17.10.2012, edited by Philip Mannion and Laura Mora-Rojas

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Sparassodonta - Hondadelphidae
Hondadelphys fieldsi6 Marshall 1976 metatherian
UCMP 39251
 Astrapotheria - Astrapotheriidae
Granastrapotherium snorki3 Johnson and Madden 1997 placental
UCMP 39635
 Notoungulata - Leontiniidae
Huilatherium pluripicatum8 Villarroel and Guerrero Diaz 1985 notoungulate
UCMP 37938; UCMP 37988, UCMP 38996
 Notoungulata - Toxodontidae
Pericotoxodon platignathus5 Madden 1997 notoungulate
UCMP 39632; UCMP 39631
 Notoungulata - Interatheriidae
Miocochilius anomopodus7 Stirton 1953 notoungulate
UCMP 37905, UCMP 37926, UCMP 39246
  - Mylodontidae
"Pseudoprepotherium confusum" = Magdalenabradys confusum2
"Pseudoprepotherium confusum" = Magdalenabradys confusum2 Hirschfeld 1985 edentate
Hirschfeld 1985, UCMP 39585, 39950
 Cingulata - Pampatheriidae
Scirrotherium hondaensis1 Edmund and Theodor 1997 edentate
UCMP 40056 (right mandible);UCMP 37924 (osteodrem)
 Rodentia - Dinomyidae
Scleromys schurmanni Stehlin 1940 caviomorph
UCMP 39894, UCMP 40551
Scleromys colombianus Fields 1957 caviomorph
Fields 1957 - Specimen 37927, 40549, 40550
"Olenopsis aequatorialis" = Drytomomys aequatorialis Anthony 1922 caviomorph
Anthony 1922 UCMP 41636, 39969, 40055, 39898, 39653
 Rodentia - Caviidae
Prodolichotis pridiana9 Fields 1957 caviomorph
UCMP 38761
Prodolichotis guerreroi9 Walton 1990 caviomorph
Walton 1990 UCMP 39901
Reptilia
 Crocodylia - Alligatoridae
 Crocodylia - Crocodylidae
Charactosuchus fieldsi n. gen. n. sp.4
Charactosuchus fieldsi n. gen. n. sp.4 Langston 1965 crocodile
U.C.M.P. no. 39646 - holotype (mandible); referred specimen: U.C.M.P. no. 37093 (partial mandible)