CTA-43 (Miocene of Peru)

Also known as Contamana locus n. 43

Where: Peru (7.4° S, 75.0° W: paleocoordinates 7.8° S, 72.6° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Pebas Formation, Mayoan (11.8 - 10.0 Ma)

• Mayoan SALMA

•Marivaux, et al. 2016: earliest late Miocene (i.e., Mayoan SALMA), based on biochronological data

•Marivaux, et al. 2016: CTA-43 indicate an earliest late Miocene age ($11 Ma; Mayoan South American Land Mam- mal Age [SALMA]) for this locality (Antoine et al., 2016, in press

Environment/lithology: coastal; lithology not reported

• Tidal interface

Size class: mesofossils

Collected in 2016

• Marivaux, et al. 2016: the fossils are in the collections of the Vertebrate Paleontology Department of the “Museo de Historia Natural—Universidad Nacional Mayor San Marcos” (MUSM), in Lima, Peru

Primary reference: P. Antoine, M. A. Abello, S. Adnet, A. J. Altamirano Sierra, P. Baby, G. Billet, M. Boivin, Y. Calderón, A. Candela, J. Chabain, F. Corfu, D. A. Croft, M. Ganerød, C. Jaramillo, S. Klaus, L. Marivaux, R. E. Navarrete, M. J. Orliac, F. Parra, M. E. Pérez, F. Pujos, J. Rage, and A. R. 2016. A 60-million-year Cenozoic history of western Amazonian ecosystems in Contamana, eastern Peru. Gondwana Research 31:30-59 [J. Zijlstra/J. Zijlstra/P. Mannion]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 176133: authorized by Jelle Zijlstra, entered by Jelle Zijlstra on 29.01.2016, edited by Miranta Kouvari

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Malacostraca
 Decapoda - Trichodactylidae
Trichodactylidae indet. Milne-Edwards 1853 crab
Bivalvia
 Pholadida - Corbulidae
Pachydon cuneatus Conrad 1871 clam
Chondrichthyes
 Myliobatiformes - Dasyatidae
Dasyatidae indet. Jordan 1888 whiptail stingray
 Myliobatiformes - Rhinopteridae
Rhinoptera sp. Cuvier 1829 cownose ray
teeth
 Myliobatiformes - Potamotrygonidae
Potamotrygon cf. motoro stingray
"same as in CTA-44"
Potamotrygon sp. Garman 1877 stingray
"same as in CTA-44"
 Pristiformes - Pristidae
Pristis sp. Linck 1790 sawfish
"oral teeth"
Actinopteri
 Siluriformes - Loricariidae
Loricariidae indet. Gill 1872 catfish
"muffel-like teeth"
 Teleostei -
 Characiformes - Cynodontidae
cf. Hydrolycus sp. Lundberg 1997
"several teeth"
 Heterognathi - Anostomidae
Leporinus sp. Lundberg 1997
"ca. 15 teeth"
Reptilia
 Testudines -
"Chelonia indet." = Testudines
"Chelonia indet." = Testudines Batsch 1788 turtle
"shell fragments"
 Testudines - Podocnemidae
Podocnemis sp. Wagler 1830 river turtle
"complete skull, plates and cervical vertebra"
 Crocodylia - Alligatoridae
Caimaninae indet. Brochu 1999 crocodilian
"teeth and fragments"
 Crocodylia -
Gavialoidea indet. Brochu 1997 crocodilian
"several teeth and fragments"
 Squamata -
Booidea indet. Gray 1825 snake
vertebra
Mammalia
 Primates - Cebidae
Cebuella sp. Gray 1865 pygmy marmoset
MUSM-3239-3242
Cebus sp. Erxleben 1777 capuchin monkey
MUSM-3243
 Rodentia - Dinomyidae
Eumegamyinae indet. Kraglievich 1926 caviomorph
"broken upper tooth"
Potamarchus sp. Burmeister 1885 caviomorph
"left M1-2"
 Rodentia - Caviidae
Caviinae indet. Gray 1821 caviomorph
"same taxon as in CTA-44 Top"
 Rodentia -
? Steiromys sp. Ameghino 1887 caviomorph
"m1-2"
Octodontoidea indet. Waterhouse 1839 caviomorph
"some jugal teeth and 2 small incisors"
Acarechimys sp. Patterson 1965 caviomorph
"several jugal teeth"
 Cingulata - Dasypodidae
Dasypodidae indet. Gray 1821 armadillo
fragmentary scute
 Cingulata - Pachyarmatheriidae
Neoglyptatelus sp. Carlini et al. 1997 edentate
"pentagonal scute"
 Xenarthra -
Mylodontoidea indet. Gill 1872 edentate
"second phalanx, small"
 Xenarthra - Pampatheriidae
cf. Scirrotherium sp. Edmund and Theodor 1997 edentate
fragmentary scute
 Ungulata -
Ungulata indet. eutherian
"enamel fragments"
 Polydolopimorphia - Argyrolagidae
Argyrolagidae indet. Ameghino 1904 metatherian
m2 or m3
 Marsupialia -
Didelphimorphia indet. Gill 1872 marsupial
"large (lower molar fragment)"
unclassified
  -
Spermatophyta indet.
"Fossil wood (ligniteous), including large float chips"; "Seeds and fruits (palm trees),"