Duke Locality 22 (Miocene of Colombia)

Where: Colombia (3.3° N, 75.2° W: paleocoordinates 2.5° N, 72.0° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Baraya Member (Villavieja Formation), Friasian (16.3 - 15.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial; gray, green mudstone and gray, green sandstone

• "14.8 m of extremely fossiliferous greenish-gray mudstone and sandstone....fining upward sequence is 1-m-thick medium-grained sandstone followed by 4.5 m of reddish-brown sandy mudstone, 1.2 m of pale-green mudstone, and on top, 0.8 m of reddish-brown mudstone"

Size class: macrofossils

Primary reference: A. A. Carlini, S. F. Vizcaino, and G. J. Scillato-Yane. 1997. Armored Xenarthrans: A unique taxonomic and ecologic assemblage. Vertebrate Paleontology in the Neotropics; The Miocene Fauna of La Venta, Colombia (R. F. Kay, R. H. Madden, R. L. Cifelli, and J. J. Flynn, eds.; Smithsonian Institution Press, Washington) [J. Alroy/J. Wertheim/L. Mora-Rojas]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 13749: authorized by John Alroy, entered by Jill Wertheim on 23.04.2002, edited by Roger Benson, Maria Vallejo, Philip Mannion and Laura Mora-Rojas

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Crocodylia - Alligatoridae
Mourasuchus atopus5 Langston 1965 crocodilian
IGM 250860 (right maxilla and part of a left mandible)
 Squamata - Teiidae
"Paradracaena colombiana" = Dracaena colombiana6
"Paradracaena colombiana" = Dracaena colombiana6 Estes 1961 caiman lizard
IGM 184146 (partial right dentary)
 Squamata - Boidae
Eunectes sp.4 Wagler 1830 anaconda
Specimen n° IGM 182840
Mammalia
 Chiroptera - Phyllostomidae
Glossophaginae indet.1 Bonaparte 1845 leaf-nosed bat
IGM 252863 This specimen was reclassified by Czaplewski et al. 2003 (PBDB Ref. n° 47088) as Palynellophyllum antimaster (see below)
Palynephyllum antimaster2 Czaplewski et al. 2003 leaf-nosed bat
IGM 252863, IGM 252971
Notonycteris sucharadeus2 Czaplewski et al. 2003 leaf-nosed bat
IGM 252869
Notonycteris magdalenensis1 Savage 1951 leaf-nosed bat
IGM 252865, IGM 251047. The specimens n° IGM 252972, IGM 252973 are reported by Czaplewski et al. 2003 (PBDB Ref. n° 47088)
Phyllostominae indet.1 Gray 1825 leaf-nosed bat
IGM 252869 This specimen was reclassified by Czaplewski et al. 2003 (PBDB Ref. n° 47088) as Notnycteris sucharadeus (see below)
Tonatia sp.2 Gray 1827 leaf-nosed bat
Specimen n° 252980, 252981, 252982, 252983
 Chiroptera - Noctilionidae
Noctilio albiventris1 Desmarest 1818 bulldog bat
IGM 253005, IGM 252961, IGM 253006, IGM 252965, IGM 252964, IGM 252967, IGM 252968, IGM 252960, IGM 252962, IGM 252963. The Specimens n° IGM 252975 and IGM 252976 are reported by Czaplewski et al. 2003 (PBDB Ref. n° 47088)
 Chiroptera - Emballonuridae
Emballonuridae indet.2 Dobson 1875 sac-winged bat
IGM 252993
Diclidurus indet.1 Wied-Neuwied 1819 ghost bat
IGM 251048
 Chiroptera - Thyropteridae
cf. Thyroptera tricolor1 disk-winged bat
IGM 250327
Thyroptera lavali2 Pine 1993 disk-winged bat
IGM 252978, IGM 252979, IGM 252970, IGM 252985, IGM-DU SN-0221a, IGM-DU SN-0221b
Thyroptera robusta n. sp.1 Czaplewski 1997 disk-winged bat
IGM 252868, IGM 252876, IGM 252877, IGM 252878
 Chiroptera - Molossidae
Molossidae indet.2 Gervais 1856 free-tailed bat
Specimen n° IGM 250329, 252969, 252987, 252988, 252989, IGM-DU 90-235
 Xenarthra - Pachyarmatheriidae
Neoglyptatelus originalis Carlini et al. 1997 edentate
 Sparassodonta - Hondadelphidae
Hondadelphys fieldsi3 Marshall 1976 metatherian
IGM 250833
 Didelphimorphia - Didelphidae
Marmosini indet.3 Reig et al. 1987 opossum
IGM 250328, IGM 253041, IGM 253040, IGM 253046
Micoureus laventicus3 Marshall 1976 woolly mouse opossum
IGM 253035
Thylamys colombianus3 Goin 1997 fat-tailed mouse opossum
IGM 253031; IGM 253033; IGM 253034
Thylamys minutus3 Goin 1997 fat-tailed mouse opossum
IGM 253042
 Microbiotheria - Microbiotheriidae
Pachybiotherium minor3 Goin 1997 marsupial
Specimen nº IGM 253026; IGM 253027; IGM 253028; IGM 253029