Deseadan

The Deseadan (Spanish: Deseadense) age is a period of geologic time (29.0–21.0 Ma) within the Oligocene epoch of the Paleogene to the Early Miocene epoch of the Neogene, used more specifically within the SALMA classification of South America. It follows the Tinguirirican and precedes the Colhuehuapian age.[1]

## Contents

* 1 Etymology
* 2 Formations
* 3 Fossils
* 4 Correlations
* 5 References
* 5.1 Bibliography

## Etymology

The age is named after the Deseado Formation of the Deseado Massif in eastern Patagonia, Argentina .

## Formations

class=notpageimage|

Locations of Deseadan formations

Formation
bold is type | Country  | Basin  | Notes

|
|
|

Deseado Formation |  Argentina | Deseado Massif |

[2]

Abanico Formation |  Chile | Abanico Basin |

[3][4]

Agua de la Piedra Formation |  Argentina | Precordillera |

[5]

Barzalosa Formation |  Colombia | Upper Magdalena Valley |

[6]

Castillo Formation |  Venezuela | Falcón Basin |

[7]

Chambira Formation |  Peru | Ucayali Basin |

[8]

Chilcatay Formation |  Peru | Pisco Basin |

[9][10]

Dos Bocas Formation |  Ecuador | Progreso Basin |

[11]

Fray Bentos Formation |  Argentina
Uruguay | Paraná Basin |

[12][13]

Monte León Formation |  Argentina | Austral Basin |

[14][15]

Moquegua Formation |  Peru | Moquegua Basin |

[16]

Mugrosa Formation |  Colombia | Middle Magdalena Valley |

[17]

Petaca Formation |  Bolivia | Subandean Belt |

[18][19]

"Puca Group" - Lacayani fauna |  Bolivia | Subandean Belt |

[20]

Río Baguales Formation |  Chile | Aysén Basin |

[21]

Salla Formation |  Bolivia | Salla-Luribay Basin |

[22][23]

Sarmiento Formation |  Argentina | Golfo San Jorge Basin |

[24][25]

Tremembé Formation/São Paulo Formation |  Brazil | Taubaté Basin |

[26]

## Fossils

Group  | Fossils  | Formation  | Notes

|
|
|

Mammals | Ancylocoelus frequens, A. minor, Archaeohyrax patagonicus, Archaeutatus malaspinensis, Argyrohyrax proavus, Asmodeus osborni, Australohyaena antiqua, Cephalomys arcidens, C. plexus, Chubutomys simpsoni, Deseadomys arambourgi, Liarthrus copei, Litodontomys chubutensis, Meteutatus aff. lagenaformis, Parastrapotherium holmbergi, Progaleopithecus tournoueri, Protosteiromys asmeodeophilus, P. medianus, Prozaedyus aff. impressus, cf. Sallacyon hoffstetteri, Scotamys antiquus, Stenotatus aff. ornatus, Trachytherus spegazzinianus, Astrapotherium sp., Coresodon sp., Deuterotherium sp., Hegetotherium sp., Homalodontotherium sp., Leontinia sp., Nesodon sp., Octodontotherium sp., Trimerostephanos sp., Palaeothentidae indet. | Deseado |

[27][28]

Archaeohyrax suniensis, Argyrohyrax proavus, Asmodeus petrasnerus, Fieratherium sorex, Gualta cuyana, Hegetotheriopsis sulcatus, Mendozahippus fierensis, Meteutatus aff. lagenaformis, Proborhyaena gigantea, Prohegetotherium malalhuense, P. schiaffinoi, P. cf. sculptum, Propachyrucos cf. smithwoodwardi, ?Prozaedyus aff. impressus, Pyrotherium romeroi, Stenotatus aff. ornatus, Trachytherus cf. spegazzinianus, cf. Archaeotypotherium sp., Pharsophorus sp., Proadinotherium sp., Progaleopithecus sp., cf. Prosotherium sp., Acaremyidae indet., Glyptodontidae indet., Interatheriidae indet., Litopterna indet., ?Megalonychidae indet., Notohippidae indet., Toxodontidae indet. | Agua de la
Piedra |

[29]
[30][31]
[32]

Lophiodolodus chaparralensis, Xenastrapotherium chaparralensis, Proadinotherium sp., Protheosodon sp., Astrapotheriidae indet. | Barzalosa |

[33]

Canaanimico amazonensis, Chambiramys shipiborum, C. sylvaticus, Deseadomys cf. arambourgi, Loretomys minutus, Palaeosteiromys amazonensis, Plesiosteiromys newelli, Maquiamys praecursor, Ucayalimys crassidens, Abderites sp., aff. Eosallamys sp., cf. Neoglyptatelus sp., Adelphomyinae indet., Anthropoidea indet., Astrapotheriidae indet., ?Caenolestidae indet., Caviomorpha indet., ?Chinchilloidea indet., Emballonuridae indet., ?Erethizontoidea indet., ?Herpetotheriidae indet., Interatheriinae indet, Litopterna indet., Marsupialia indet., Microbiotheria indet., Mylodontidae indet., Mylodontoidea indet., Notoungulata indet., Octodontoidea indet., ?Palaeothentidae indet., Pampatheriidae indet., ?Rhinolophoidea indet., Tolypeutinae indet., Toxodontidae indet., Typotheria indet., Vespertilionoidea indet. | Chambira |

[34]
[35][36]
[37][38]

Chilcacetus cavirhinus, Huaridelphis raimondii, Incacetus broggii, Macrosqualodelphis ukupachai, Notocetus vanbenedeni, cf. Kentriodon sp., Cetotheriidae indet., Eurhinodelphinidae indet., Mysticeti indet., Odontoceti indet., Pinnipedia indet., Physeteroidea indet., Squalodelphinidae indet. | Chilcatay |

[39][40]
[41][42]
[43][44]

Urkudelphis chawpipacha | Dos Bocas |

[45][46]

Dasypodon atavus, Eopachyrucos ranchoverdensis, Fiandraia romeii, Palaeopeltis inornatus, Palmiramys waltheri, Proborhyaena cf. gigantea, Prohegetotherium schiaffinoi, Proterotherium berroi, Pseudohegetotherium palmirense, Scarrittia robusta, Trachytherus spegazzinianus, Urotherium interundatum, Uruguaytherium beaulieui, Argyrohyrax sp., Berthawyleria sp., Cephalomyopsis sp., Doellotatus sp., Eoviscaccia sp., Hegetotherium sp., Protypotherium sp., ?Scelidodon sp., ?Vassallia sp., Archaeohyracidae indet., Dasypodidae indet., Euphractini indet., Glyptatelinae indet., Interatheriinae indet., Leontiniidae indet., Machlydotherium indet., Trachytheriinae indet. | Fray Bentos |

[47][48]
[49][50]
[51][52]
[53][54]
[55]

Odontoceti indet., Phocidae indet. | Gaiman |

[56][57]

Diaphorocetus poucheti, Notocetus vanbenedeni, Prosqualodon australis, cf. Kentriodon sp. | Monte León |

[58][59]

?Rhynchippus sp. | Petaca |

[60]

Eoviscaccia boliviana, Trachytherus spegazzinianus, Cephalomyopsis sp., Glyptatelus sp., Prohegetotherium sp., Borhyaenidae indet., Dasypodidae indet., Macraucheniidae indet., Orophodontidae indet. | Lacayani fauna |

[61]

Anayatherium ekacoa, A. fortis, Andinogale sallensis, Antawallathentes illimani, A. quimsacruza, Archaeohyrax suniensis, Branisamys luribayensis, Branisella boliviana, Brucemacfaddenia boliviensis, Cephalomys bolivianus, ?Coniopternium primitivum, Eurygenium pacegnum, Evolestes hadrommatos, Federicoanaya sallaensis, Incamys bolivianus, Kuntinaru boliviensis, Luribayomys masticator, Migraveramus beatus, Notogale mitis, Palaeothentes boliviensis, Paraborhyaena boliviana, Paroctodontotherium calleorum, Pascualihippus boliviensis, Pharsophorus lacerans, Proargyrolagus bolivianus, Prohegetotherium schiaffinoi, Pseudoglyptodon sallaensis, Pyrotherium macfaddeni, cf. Pyrotherium romeroi, Ronwolffia pacifica, Rhynchippus cf. brasiliensis, Sallacyon hoffstetteri, Salladolodus deuterotherioides, Sallamys pascuali, Sallatherium altiplanense, Thadanius hoffstetteri, Trachytherus alloxus, Tricoelodus boliviensis, cf. Acamana sp., cf. Eocoleophorus sp., Glyptatelus sp., aff. Neoreomys sp., Peltephilus sp., Astrapotheriidae indet., Borhyaeninae indet., Dasypodidae indet., Dasyproctidae indet., Megalonychidae indet., Nesodontinae indet., Polydolopidae indet. | Salla |

[62][63]
[22][64]

Acarechimys leucotheae, Ancylocoelus frequens, Archaeohyrax patagonicus, Archaeophylus patrius, Archaeotypotherium propheticus, Archaeutatus malaspinensis, Argyrohyrax proavus, Asmodeus osborni, Asteromys punctus, Australohyaena antiqua, Bryanpattersonia sulcidens, Cephalomys arcidens, C. ceciae, C. plexus, Changquin woodi, Chubutomys navaensis, C. simpsoni, Clypeotherium magnum, Coresodon scalpridens, Cramauchenia normalis, Deseadomys arambourgi, Deuterotherium distichum, Draconomys verai, Elmerriggsia fieldia, Eomicrobiotherium matutinum, Eopachyrucos pliciformis, ?Eoviscaccia australis, Epiklohnia verticalis, Ethelomys loomisi, Eurygenium latirostris, Eutrachytherus grandis, Galileomys baios, Hegetotheriopsis sulcatus, Henricofilholia lustrata, H. vucetichia, Hondonadia parca, H. cf. pumila, Incamys bolivianus, I. menniorum, Kramadolops maximus, Leontinia gaudryi, Leucokephalos zeffiae, Liarthrus copei, Litodontomys chubutensis, Llitun notuca, Loncolicu tretos, Maddenia lapidaria, Medistylus dorsatus, Meteutatus lagenaformis, Notodiaphorus crassus, Notogale mitis, Palaeopeltis inornatus, Palaeothentes chubutensis, P. lucina, P. praecursor, Parabderites minusculus, Parastrapotherium holmbergi, Parutaetus ?chilensis, Patagonhippus canterensis, P. dukei, Pharsophorus lacerans, P. tenuis, Pilchenia intermedia, Platypittamys brachyodon, Proadiantus excavatus, P. gibbus, Proadinotherium leptognathus, Proborhyaena gigantea, Proeuphractus setiger, Progaleopithecus fissurellatus, P. tournoueri, Prohegetotherium sculptum, Propachyrucos ameghinorum, Prosotherium garzoni, P. triangulidens, ?Protacaremys adilos, Protarchaeohyrax minor, Protheosodon coniferus, Protosteiromys asmodeophilus, P. medianus, Prozaedius impressus, P. planus, Pseudhalmarhiphus guaraniticus, Pyrotherium sorondoi, Rhynchippus equinus, R. pumilus, Rosendolops cf. ebaios, Sadypus tortuosus, Santiagorothia chiliensis, Scarrittia barranquensis, S. canquelensis, Scotamys antiquus, ?Stenotatus aff. ornatus, Trachytherus spegazzinianus, Tricoelodus bicuspidatus, Vallehermosomys mazzonii, ?V. merlinae, Barrancatatus sp., Cephalomyopsis sp., Cochilius sp., Evolestes sp., Octodontotherium sp., Peltephilus sp., Prohegetotherium sp., Trachytherus sp., Caviomorpha indet., ?Chinchilloidea indet., ?Dasyproctidae indet., cf. Eobranisamys indet., Eocardiidae indet., Henricosborniidae indet., Interatheriinae indet., Isotemnidae indet., Macraucheniidae indet., Palaeothentidae indet., Pichipilidae indet., Propalaehoplophorinae indet., Rodentia indet., Stegotheriini indet., Toxodontia indet. | Sarmiento |

[65][66]
[67][68]
[69][70]
[71][72]
[73][74]
[75][76]
[77][78]

cf. Leontinia gaudryi | São Paulo |

[79]

Moqueguahippus glycisma, Rhynchippus cf. pumilus, Sallamys quispea, Trachytherus ramirezi, T. cf. spegazzinianus, cf. Coniopternium sp., cf. Dasypodinae indet., Hegetotheriidae indet., Macraucheniidae indet., Proterotheriidae indet. | Moquegua |

[80]
[81][82]
[83]

Birds | Cladornis pachypus, Cruschedula revola | Deseado |

[84]

cf. Andrewsornis sp. | Agua de la
Piedra |

[32]

Palaeospheniscus sp. | Chilcatay |

[44]

Devincenzia gallinali | Fray Bentos |

[54]

Eretiscus tonnii, Palaeospheniscus patagonicus, Palaeospheniscus wimani, Paraptenodytes antarcticus | Gaiman |

[56][57]

Arthrodytes andrewsi, Paraptenodytes brodkorbi, P. robustus, Pseudospheniscus concavus | Monte León |

[58]

Spheniscidae indet. | Río
Baguales |

[85]

Phorusrhacidae indet. | Salla |

[64]

Physornis sp. | Sarmiento |

[73]

Paraphysornis brasiliensis, Taubatornis campbelli | Tremembé |

[86][87]

Phorusrhacidae indet. | Moquegua |

[81]

Reptiles &
amphibians | Balanerodus logimus, Gavialidae indet. | Barzalosa |

[33]

?Balanerodus sp., Podocnemis sp., cf. Purussaurus sp., cf. Sebecus sp., Anura indet., Booidea indet., Caimaninae indet., Colubroidea indet., Gavialoidea indet., Serpentes indet. | Chambira |

[37][38]

Testudines indet. | Chilcatay |

[41]

Testudinidae indet. | Fray Bentos |

[55]

Eusuchia indet., Sebecosuchia indet. | Mugrosa |

[88]

?Chelonoidis sp. | Petaca |

[60]

cf. Calyptocephalella sp., Testudines indet. | Salla |

[64]

Calyptocephalella canqueli, Neoprocoela edentatus, Eupsophus sp., ?Madtsoia sp., Iguaninae indet., Sebecidae indet. | Sarmiento |

[70][73]
[74]

Caiman tremembensis | Tremembé |

[87]

Fishes | cf. Hydrolycus sp., Leporinus sp., cf. Phractocephalus sp., Potamotrygon sp., Actinopterygii indet., Cichlidae indet., ?Erythrinidae indet., Loricariidae indet., Pimelodidae indet. | Chambira |

[37][38]

Carcharhinus cf. brachurus, Carcharodon hastalis, Carcharodon subauriculatus, Hemipristis cf. serra, Isurus desori | Chilcatay |

[43]
[89][90]

Carcharodon hastalis, Carcharoides catticus, Echinorhinus pozzii, Galeocerdo aduncus, Lamna totuserrata, Megascyliorhinus trelewensis, Heterodontus sp., Labrodon sp., Sphyrna sp., Squatina sp., Molidae indet., Myliobatoidea indet. | Gaiman |

[91]

Isurus dolloi, Striatolamia macrota, Abdounia sp. | Río
Baguales |

[85]

Taubateia paraiba | Tremembé |

[92]

Insects | ?Archaeodrapetiops elongata, A. mezzalirai, A. nefera, A. transversa, Archaeolycorea ferreirai, Eternia papaveroi, Indusia suguioi, Kleopathra nemogypsia, K. noctodiva, Microbasis longinota, Neorinella garciae, Parafitopteryx duarteae, Paratilgidopsis praecursora, Petisca dryellina, Philodarchia cigana, Psephenella ferreirai, ?Tabanus tremembeensis, Taubocicadellina breviptera, Taubarixa macrocelata, Tauborixella santosae, Tauborixiellopsis breviclavata, Taubatehymen minuta, Tremembaetalion minutum, Tremembecarabus rotundus, Tremembella gracilis, Tremembellina microcelata, Trulaxia primula, Curculioninae indet., Hydrophilidae indet. | Tremembé |

[93][94]
[95][96]

## Correlations

The Deseadan South American land mammal age (SALMA) is equivalent to the Arikareean in the North American land mammal age (NALMA) and the Harrisonian in the 2000 version of the classification. It overlaps with the Hsandagolian of Asia and the MP 25 zone of Europe, the Waitakian and the Landon epoch of New Zealand.

Deseadan correlations in South America Formation | Agua | Rancahué | Guillermo | Deseado | Sarmiento | Salla | Lacayani | Fray Bentos | Moquegua | Chambira | Barzalosa | Tremembé | Cascadas | Map

|
|
|
|
|
|
|
|
|
|
|
|
|
|

Basin | Neuquén | Austral | Deseado | San Jorge | Salla | Subandean | Norte | Moquegua | Ucayali | VSM | Taubaté | Panama |

Deseadan (South America)

Country |  Argentina |  Bolivia |  Uruguay |  Peru |  Colombia |  Brazil |  Panama
Archaeohyrax | 14px |  |  | 14px | 14px | 14px |  |  |  |  |  |
Prohegetotherium | 14px |  |  |  | 14px | 14px | 14px | 14px | 14px |  |  |  |
Pyrotherium | 14px |  |  |  | 14px | 14px |  |  |  |  |  |  |
Pharsophorus |  |  |  |  |  |  |  |  |  |  |  |  |
Trachytherus | 14px |  |  | 14px | 14px | 14px | 14px | 14px | 14px |  |  |
Proadinotherium | 14px |  |  |  | 14px |  |  |  |  |  | 14px |  |
Proborhyaena | 14px |  |  |  | 14px |  |  | 14px |  |  |  |  |
Meteutatus | 14px |  |  | 14px | 14px |  |  |  |  |  |  |  |
Andrewsornis |  |  |  |  |  |  |  |  |  |  |  |  |
Terror birds | 10px |  |  | 10px | 10px | 10px |  | 10px | 10px |  |  | 10px |
Rodents | 10px |  |  | 10px | 10px | 10px | 10px | 10px | 10px | 10px |  |  |
Reptiles |  |  |  | 10px | 10px | 10px | 10px | 10px | 10px | 10px | 10px | 10px |
Primates |  |  |  |  |  | 10px |  |  |  | 10px |  |  | 10px
Flora |  |  |  |  |  |  |  |  |  |  |  |  |
Insects |  |  |  |  |  |  |  |  |  |  |  |  |
Environments | Alluvial | Fluvial | Fluvial | Alluvial | Fluvial-alluvial | Fluvial | Fluvio-lacustrine | Alluvial-fluvial | Lacustrine | Fluvial |

Deseadan volcanoclastics

8px Deseadan fauna

Deseadan flora

Volcanic | Yes |  | Yes | Yes | Yes |  | Yes |  | Yes

## References

1. ↑ Paleo Database: Deseadan
2. ↑ Agnolin, 2006, p.27
3. ↑ Godoy et al., 2012
4. ↑ Muñoz et al., 2006
5. ↑ Combina & Nullo, 2011, p.201
6. ↑ Acosta et al., 2002, p.49
7. ↑ Johnson, 2009, p.60
8. ↑ Castro Medina, 2010, p.55
9. ↑ De la Cruz, 2008, p.53
10. ↑ Solíz Mundaca, 2018, p.13
11. ↑ Lorenzo et al., 2018, p.41
12. ↑ Bond et al., 1998, p.42
13. ↑ Tófalo & Morrás, 2009, p.680
14. ↑ Náñez et al., 2009
15. ↑ Pérez Panera, 2010, p.52
16. ↑ Alván et al., 2017, p.56
17. ↑ Gómez et al., 2008, p.48
18. ↑ Marshall & Sempere, 1991, p.635
19. ↑ Hernández et al., 2002, p.5
20. ↑ Billet et al., 2008, p.153
21. ↑ Le Roux et al., 2010, p.332
22. ↑ 22.0 22.1 Conoce Nuestra Biodiversidad - Salla
23. ↑ Reguero & Cerdeño, 2005, p.674
24. ↑ Dozo et al., 2014, p.241
25. ↑ Acosta & Tambussi, 2005, p.128
26. ↑ Do Couto Ribeiro, 2010, p.88
27. ↑ Forasiepi et al., 2014
28. ↑ La Flecha at Fossilworks.org
29. ↑ Cerdeño & Reguero, 2015
30. ↑ Seoane & Cerdeño, 2014
31. ↑ Cerdeño & Vera, 2014
32. ↑ 32.0 32.1 Quebrada Fiera at Fossilworks.org
33. ↑ 33.0 33.1 Chaparral Alto José at Fossilworks.org
34. ↑ Boivin et al., 2019
35. ↑ Marivaux et al., 2016
36. ↑ Boivin et al., 2016
37. ↑ 37.0 37.1 37.2 CTA-61 at Fossilworks.org
38. ↑ 38.0 38.1 38.2 CTA-32 at Fossilworks.org
39. ↑ Bianucci et al., 2018
40. ↑ Lambert et al., 2014
41. ↑ 41.0 41.1 Ullujaya at Fossilworks.org
42. ↑ Ullujaya 2 at Fossilworks.org
43. ↑ 43.0 43.1 Santa Rosa at Fossilworks.org
44. ↑ 44.0 44.1 Zamaca at Fossilworks.org
45. ↑ Tanaka et al., 2017, p.3
46. ↑ Urkudelphis at Fossilworks.org
47. ↑ Playa de la Agraciada at Fossilworks.org
48. ↑ Arroyo Castillo at Fossilworks.org
49. ↑ Río Corrientes at Fossilworks.org
50. ↑ Arroyo María Grande at Fossilworks.org
51. ↑ Arroyo Avalos at Fossilworks.org
52. ↑ Paso del Cuello at Fossilworks.org
53. ↑ Rancho Verde at Fossilworks.org
54. ↑ 54.0 54.1 Santa Lucía Basin at Fossilworks.org
55. ↑ 55.0 55.1 Palmirense at Fossilworks.org
56. ↑ 56.0 56.1 Gaimán at Fossilworks.org
57. ↑ 57.0 57.1 Playa Santa Isabel at Fossilworks.org
58. ↑ 58.0 58.1 Gran Bajo de San Julian at Fossilworks.org
59. ↑ Bahía Nueva at Fossilworks.org
60. ↑ 60.0 60.1 Quebrada Saguayo at Fossilworks.org
61. ↑ Lacayani Fauna at Fossilworks.org
62. ↑ Shockey, 2017
63. ↑ Rincón et al., 2015
64. ↑ 64.0 64.1 64.2 Salla Formation at Fossilworks.org
65. ↑ Vucetich et al., 2015
66. ↑ Vucetich et al., 2014
67. ↑ Pérez et al., 2012
68. ↑ Shockey et al., 2012
69. ↑ La Cantera at Fossilworks.org
70. ↑ 70.0 70.1 Crater Lake Beds at Fossilworks.org
71. ↑ Upper Beds at Fossilworks.org
72. ↑ Higher Level at Fossilworks.org
73. ↑ 73.0 73.1 73.2 Cabeza Blanca at Fossilworks.org
74. ↑ 74.0 74.1 El Pajarito at Fossilworks.org
75. ↑ Pico Truncado at Fossilworks.org
76. ↑ Punta Nava at Fossilworks.org
77. ↑ Unit 3 at Fossilworks.org
78. ↑ Gran Barranca Deseadan at Fossilworks.org
79. ↑ Padre Eterno at Fossilworks.org
80. ↑ Shockey et al., 2016
81. ↑ 81.0 81.1 Moquegua at Fossilworks.org
82. ↑ Cerro Pan de Azúcar at Fossilworks.org
83. ↑ Cerro Mono at Fossilworks.org
84. ↑ Gulf of San Jorge at Fossilworks.org
85. ↑ 85.0 85.1 Sierra Baguales at Fossilworks.org
86. ↑ Santa Fé Farm at Fossilworks.org
87. ↑ 87.0 87.1 Bairro do Padre Eterno at Fossilworks.org
88. ↑ Camp Waldo Locality, UCMP V-4620 at Fossilworks.org
89. ↑ Cerro Buque M2 at Fossilworks.org
90. ↑ Cerro Buque M8 at Fossilworks.org
91. ↑ Southern cliffs at Fossilworks.org
92. ↑ Tremembé shales at Fossilworks.org
93. ↑ UnG collection at Fossilworks.org
94. ↑ Cachoeira site, south of Vargem Grande do Sul at Fossilworks.org
95. ↑ IG/USP collection at Fossilworks.org
96. ↑ Near Taubaté at Fossilworks.org

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General

* Woodburne, M.O.; F.J. Goin; M. Bond; A.A. Carlini; J.N. Gelfo; G.M. López; A. Iglesias, and A.N. Zimicz. 2013. Paleogene Land Mammal Faunas of South America; a Response to Global Climatic Changes and Indigenous Floral Diversity. Journal of Mammalian Evolution 21\. 1–73. Accessed 2019-02-15.

Deseado Formation

* Agnolin, Federico. 2006. Posición sistemática de algunas aves fororracoideas (Ralliformes: Cariamae) Argentinas. Revista del Museo de Ciencias Naturales 8\. 27–33. Accessed 2018-09-10.
* Forasiepi, Analía M.; M. Judith Babot, and Natalia Zimicz. 2014. Australohyaena antiqua (Mammalia, Metatheria, Sparassodonta), a large predator from the Late Oligocene of Patagonia. Journal of Systematic Palaeontology 13\. 503–525. Accessed 2019-02-12.

Abanico Formation

* Bertrand, Ornella C.; John J. Flynn; Darin A. Croft, and André R. Wyss. 2012. Two new taxa (Caviomorpha, Rodentia) from the early Oligocene Tinguiririca fauna (Chile). American Museum Novitates 3750\. 1–36. Accessed 2019-02-15.
* Bradham, Jennifer; John J. Flynn; Darin A. Croft, and Andre R. Wyss. 2015. New notoungulates (Notostylopidae and basal toxodontians) from the early Oligocene Tinguiririca fauna of the Andean Main Range, central Chile. American Museum Novitates 3841\. 1–24. Accessed 2019-02-13.
* Croft, Darin A.; John J. Flynn, and André R. Wyss. 2008. The Tinguiririca fauna of Chile and the early stages of "modernization" of South American mammal faunas. Arquivos do Museu Nacional, Rio de Janeiro 66\. 191–211. Accessed 2019-02-12.
* Engelman, Russell K.; John J. Flynn; Philip Gans; André R. Wyss, and Darin A. Croft. 2018. Chlorocyon phantasma, a late Eocene borhyaenoid (Mammalia, Metatheria, Sparassodonta) from the Los Helados locality, Andean Main Range, central Chile. American Museum Novitates 3918\. 1–22. Accessed 2019-02-11.
* Godoy, Estanislao. 2012. Sobre el variable marco geotectónico de las formaciones Abanico y Farellones y sus equivalentes al sur de los 35°LS. Revista de la Asociación Geológica Argentina 69\. 570–577. Accessed 2017-08-15.
* Muñoz, Marcia; Francisco Fuentes; Mario Vergara; Luis Aguirre; Jan Olov Nyström; Gilbert Féraud, and Alain Demant. 2006. Abanico East Formation: petrology and geochemistry of volcanic rocks behind the Cenozoic arc front in the Andean Cordillera, central Chile (33°50'S). Revista Geológica de Chile 33\. 109–140. Accessed 2017-08-15.

Agua de la Piedra Formation

* Cerdeño, Esperanza, and Marcelo Reguero. 2015. The Hegetotheriidae (Mammalia, Notoungulata) assemblage from the late Oligocene of Mendoza, central-western Argentina. Journal of Vertebrate Paleontology 35\. e907173. Accessed 2015-02-13.
* Cerdeño, Esperanza, and Bárbara Vera. 2014. A new Leontiniidae (Notoungulata) from the Late Oligocene beds of Mendoza Province, Argentina. Journal of Systematic Palaeontology 13\. 943–962. Accessed 2019-02-12.
* Combina, Ana María, and Francisco Nullo. 2011. Ciclos tectónicos, volcánicos y sedimentarios del Cenozoico del sur de Mendoza-Argentina (35-37° S y 69° 30'W). Andean Geology 38\. 198–218. Accessed 2018-09-11.
* Hernández Del Pino, Santiago; Federico D. Seoane, and Esperanza Cerdeño. 2017. New postcranial remains of large toxodontian notoungulates from the late Oligocene of Mendoza, Argentina and their systematic implications. Acta Palaeontologica Polonica 62\. 195–210. Accessed 2019-02-12.
* Seoane, Federico, and Esperanza Cerdeño. 2014. First extra-Patagonian record of Asmodeus Ameghino (Notoungulata, Homalodotheriidae) in the Late Oligocene of Mendoza Province, Argentina. Ameghiniana 51\. 373–384. Accessed 2019-02-12.

Barzalosa Formation

* Acosta, Jorge E.; Rafael Guatame; Juan Carlos Caicedo A., and Jorge Ignacio Cárdenas. 2002. Mapa Geológico de Colombia - Plancha 245 - Girardot - 1:100,000 - Memoria Explicativa, 1–92. INGEOMINAS.

Castillo Formation

* Johnson, Kenneth G.; Marcelo R. Sánchez Villagra, and Órangel A. Aguilera. 2009. The Oligocene-Miocene transition on coral reefs in the Falcón Basin (NW Venezuela). PALAIOS 24\. 59–69. Accessed 2017-08-15.
* Rincón, Ascanio D.; Andrés Solórzano; H. Gregory McDonald, and Mónica Núñez Flores. 2017. Baraguatherium takumara, gen. et sp. nov., the earliest mylodontoid sloth (early Miocene) from northern South America. Journal of Mammalian Evolution 24\. 179–191. Accessed 2019-02-12.
* Rincón, Ascanio D.; Andrés Solórzano; Mouloud Benammi; Patrick Vignaud, and H. Gregory McDonald. 2014. Chronology and geology of an Early Miocene mammalian assemblage in North of South America, from Cerro La Cruz (Castillo Formation), Lara State, Venezuela: implications in the 'changing course of Orinoco River' hypothesis. Andean Geology 41\. 507–528. Accessed 2018-09-07.
* Solórzano, Andrés; Ascanio D. Rincón; Giovanne M. Cidade; Mónica Núñez Flores, and Leonardo Sánchez. 2018. Lower Miocene alligatoroids (Crocodylia) from the Castillo Formation, northwest of Venezuela. Palaeobiodiversity and Palaeoenvironments _. 1–19. Accessed 2018-09-07.
* Urbani, Franco, and David Mendi. 2010. Notas sobre la discordancia del margen sur de la cuenca Oligo-Miocena de Falcón estados Lara, Falcón y Yaracuy, Venezuela. Boletín de la Academia de Ciencias Físicas, Matemáticas y Naturales LXX. 9–25. Accessed 2017-08-15.

Chambira Formation

* Boivin, Myriam; Laurent Marivaux, and Pierre-Olivier Antoine. 2019. New insight from the Paleogene record of Amazonia into the early diversification of Caviomorpha (Hystricognathi, Rodentia): phylogenetic, macroevolutionary, and paleobiogeographic implications. Geodiversitas 41\. 143–245. Accessed 2019-02-28.
* Boivin, Myriam; Laurent Marivaux; Adriana M. Candela; Maëva J. Orliac; François Pujos; Rodolfo Salas Gismondi; Julia V. Tejada Lara, and Pierre-Olivier Antoine. 2016. Late Oligocene caviomorph rodents from Contamana, Peruvian Amazonia. Papers in Palaeontology 3\. 69–109. Accessed 2019-02-12.
* Marivaux, Laurent; Sylvain Adnet; Ali J. Altamirano Sierra; Myriam Boivin; François Pujos; Anusha Ramdarshan; Rodolfo Salas Gismondi; Julia Tejada, and Pierre-Olivier Antoine. 2016. Neotropics provide insights into the emergence of New World monkeys: New dental evidence from the late Oligocene of Peruvian Amazonia. Journal of Human Evolution 97\. 159–175. Accessed 2019-02-04.

Chilcatay Formation

* Bianucci, Giovanni; Giulia Bosio; Elisa Malinverno; Christian De Muizon; Igor M. Villa; Mario Urbina, and Olivier Lambert. 2018. A new large squalodelphinid (Cetacea, Odontoceti) from Peru sheds light on the Early Miocene platanistoid disparity and ecology. Royal Society Open Science 5\. 172302.
* De la Cruz, Aldo Alván. 2008. Geología de Ocucaje: aportes en la sedimentología y paleontología de Lomas de Ullujaya (Ica, Perú). Revista del Instituto de Investigaciones FIGMMG 11\. 51–59. Accessed 2017-08-15.
* Lambert, Olivier; Christian De Muizon; Elisa Malinverno; Claudio Di Celma; Mario Urbina, and Giovanni Bianucci. 2017. A new odontocete (toothed cetacean) from the Early Miocene of Peru expands the morphological disparity of extinct heterodont dolphins. Journal of Systematic Palaeontology 16\. 981–1016. Accessed 2019-02-12.
* Lambert, Olivier; Giovanni Bianucci, and Mario Urbina. 2014. Huaridelphis raimondii, a new early Miocene Squalodelphinidae (Cetacea, Odontoceti) from the Chilcatay Formation, Peru. Journal of Vertebrate Paleontology 34\. 987–1004. Accessed 2019-02-12.

Dos Bocas Formation

* Lorenzo, Erica; Wladimir Andrés Roca Beltrán; Manuel Martínez; Antonio Morato; Paulo César Escandón Panchana, and Cristian Paul Álvarez Domínguez. 2018. Correlación geoquímica entre crudos y rocas del sistema petrolero de la península de Santa Elena y el golfo de Guayaquil. Boletín de Geología 40\. 31–42. Accessed 2018-10-01.
* Tanaka, Yoshihiro; Juan Abella; Gabriel Aguirre Fernández; María Gregori, and R. Ewan Fordyce. 2017. A new tropical Oligocene dolphin from Montañita/Olón, Santa Elena, Ecuador. PLoS ONE 12\. e0188380. Accessed 2018-10-01.

Fray Bentos Formation

* Bond, Mariano; Guillermo López; Marcelo A. Reguero; Gustavo J. Scillato Yané, and María G. Vucetich. 1998. Los mamíferos de la Formación Fray Bentos (Edad mamífero Deseadense, Oligoceno Superior) de las provincias de Corrientes y Entre Ríos, Argentina. Asociación Paleontológica Argentina. Publicación Especial 5\. 41–50. Accessed 2018-09-12.
* Tófalo, Ofelia Rita, and Héctor J.M. Morrás. 2009. Evidencias paleoclimáticas en duricostras, paleosuelos y sedimentitas silicoclásticas, del Cenozoico de Uruguay. Revista de la Asociación Geológica Argentina . 674–686. Accessed 2018-09-12.

Gaiman Formation

* Acosta Hospitaleche, Carolina. 2007. Revisión sistemática de Palaeospheniscus biloculata (Simpson) nov. comb. (Aves, Spheniscidae) de la Formación Gaiman (Mioceno Temprano), Chubut, Argentina. Ameghiniana 44\. 417–426. Accessed 2018-09-11.
* Viglino, Mariana; Mónica R. Buono; Carolina S. Gutstein; Mario A. Cozzuol, and José I. Cuitiño. 2018. A new dolphin from the early Miocene of Patagonia, Argentina: Insights into the evolution of Platanistoidea in the Southern Hemisphere. Acta Palaeontologica Polonica 63\. 261–277. Accessed 2019-02-11.

Lacayani fauna

* Billet, Guillaume; Christian De Muizon, and Bernardino Mamani Quispe. 2008. Late Oligocene mesotheriids (Mammalia, Notoungulata) from Salla and Lacayani (Bolivia): implications for basal mesotheriid phylogeny and distribution. Zoological Journal of the Linnean Society 152\. 153–200. Accessed 2018-09-11.

Monte León Formation

* Náñez, Carolina; Mirta E. Quattrocchio, and Liliana Ruiz. 2009. Palinología y micropaleontología de las Formaciones San Julián y Monte León (Oligoceno - Mioceno temprano) en el subsuelo de cabo Curioso, provincia de Santa Cruz, Argentina. Ameghiniana 46\. 669–693. Accessed 2017-08-15.

Moquegua Formation

* Alván, Aldo; Katerin Ramírez; Hilmar von Eynatten; István Dunkl; Javier Jacay, and Gabriela Bertone. 2017. Evolución Geológica de las Cuencas de Antearco del Sur de Perú (Moquegua y Camaná-Mollendo): Proveniencia Sedimentaria y Análisis de Facies en Rocas Cenozoicas. Boletín de la Sociedad Geológica del Perú 112\. 53–77. Accessed 2018-09-10.
* Shockey, Bruce J.; Guillaume Billet, and Rodolfo Salas Gismondi. 2016. A new species of Trachytherus (Notoungulata: Mesotheriidae) from the late Oligocene (Deseadan) of Southern Peru and the middle latitude diversification of early diverging mesotheriids. Zootaxa 4111\. 565–583. Accessed 2019-02-12.

Mugrosa Formation

* Gómez, Luis Alfonso; Alejandro Patiño; Giancarlo Renzoni; Alejandro Beltrán; Claudia Quintero, and Martín Manrique. 2008. Geología de la Plancha 119 Barrancabermeja - 1:100,000, 1–105. INGEOMINAS.

Petaca Formation

* Hernández, R.; T. Jordan; A. Dalenz Farjat; L. Echavarría; B. Idelman, and J. Reynolds. 2002. Edades, distribución, controles tectónicos y eustáticos de las ingresiones marinas paranense y caribeana en el sur de Bolivia y Argentina, 1–27. V Congreso Latinoamericano de Paleontología. Accessed 2018-09-10.

Río Baguales Formation

* Le Roux, Jacobus P.; Jacqueline Puratich; F. Amaro Mourgues; José Luis Oyarzún; Rodrigo A. Otero; Teresa Torres, and Francisco Hervé. 2010. Estuary deposits in the Río Baguales Formation (Chattian-Aquitanean), Magallanes Province, Chile. Andean Geology 37\. 329–344. Accessed 2017-10-25.

Salla Formation

* Reguero, Marcelo A., and Esperanza Cerdeño. 2005. New late Oligocene Hegetotheriidae (Mammalia, Notoungulata) from Salla, Bolivia. Journal of Vertebrate Paleontology 25\. 674–684. Accessed 2018-09-11.
* Rincón, Ascanio D.; Bruce J. Shockey; Federico Anaya, and Andrés Solórzano. 2015. Palaeothentid Marsupials of the Salla Beds of Bolivia (Late Oligocene): Two New Species and Insights into the Post-Eocene Radiation of Palaeothentoids. Journal of Mammalian Evolution 22\. 455–471. Accessed 2019-02-13.
* Shockey, Bruce J. 2017. New early diverging cingulate (Xenarthra: Peltephilidae) from the Late Oligocene of Bolivia and considerations regarding the origin of crown Xenarthra. Bulletin of the Peabody Museum of Natural History 58\. 371–396. Accessed 2019-02-12.

Sarmiento Formation

* Acosta Hospitaleche, Carolina, and Claudia Tambussi. 2005. Phorusrhacidae Psilopterinae (Aves) en la Formación Sarmiento de la localidad de Gran Hondonada (Eoceno Superior), Patagonia, Argentina [Phorusrhacidae Psilopterinae (Birds) in the Sarmiento Formation from the Gran Hondonada locality (Upper Eocene), Patagonia, Argentina]. Revista Española de Paleontología 20\. 127–132. Accessed 2018-09-10.
* Arnal, Michelle; Alejandro G. Kramarz; M. Guiomar Vucetich, and E. Carolina Vieytes. 2014. A new early Miocene octodontoid rodent (Hystricognathi, Caviomorpha) from Patagonia (Argentina) and a reassessment of the early evolution of Octodontoidea. Journal of Vertebrate Paleontology 34\. 397–406. Accessed 2019-02-12.
* Cheme Arriaga, Lucas; María Teresa Dozo, and Javier N. Gelfo. 2016. A new Cramaucheniinae (Litopterna, Macraucheniidae) from the early Miocene of Patagonia, Argentina. Journal of Vertebrate Paleontology 36\. e1229672. Accessed 2019-02-12.
* Dozo, María Teresa; Martín Ciancio; Pablo Bouza, and Gastón Martínez. 2014. Nueva asociación de mamíferos del Paleógeno en el este de la Patagonia (provincia de Chubut, Argentina): implicancias biocronológicas y paleobiogeográficas. Andean Geology 41\. 224–247. Accessed 2017-08-15.
* Pérez, María Encarnación; Marcelo Krause, and María Guiomar Vucetich. 2012. A new species of Chubutomys (Rodentia, Hystricognathi) from the late Oligocene of Patagonia and its implications on the early evolutionary history of Cavioidea sensu stricto. Geobios 45\. 573–580. Accessed 2019-02-15.
* Shockey, Bruce J.; John J. Flynn; Darin A. Croft; Phillip Gans, and André R. Wyss. 2012. New leontiniid Notoungulata (Mammalia) from Chile and Argentina : comparative anatomy, character analysis, and phylogenetic hypotheses. American Museum Novitates 3737\. 1–64. Accessed 2019-02-15.
* Sterli, Juliana; Marcelo S. De la Fuente, and J. Marcelo Krause. 2015. A new turtle from the Palaeogene of Patagonia (Argentina) sheds new light on the diversity and evolution of the bizarre clade of horned turtles (Meiolaniidae, Testudinata). Zoological Journal of the Linnean Society 174\. 519–548. Accessed 2019-02-13.
* Vucetich, M.G.; M.T. Dozo; M. Arnal, and M.E. Pérez. 2015. New rodents (Mammalia) from the late Oligocene of Cabeza Blanca (Chubut) and the first rodent radiation in Patagonia. Historical Biology: An International Journal of Paleobiology 27\. 236–257. Accessed 2019-02-13.
* Vucetich, María G.; María E. Pérez; Martín R. Ciancio; Alfredo A. Carlini; Richard H. Madden, and Matthew J. Kohn. 2014. A new acaremyid rodent (Caviomorpha, Octodontoidea) from Scarritt Pocket, Deseadan (late Oligocene) of Patagonia (Argentina). Journal of Vertebrate Paleontology 34\. 689–698. Accessed 2019-02-12.
* Wyss, André R.; John J. Flynn, and Darin A. Croft. 2018. New Paleogene notohippids and leontiniids (Toxodontia; Notoungulata; Mammalia) from the Early Oligocene Tinguiririca Fauna of the Andean Main Range, central Chile. Journal of South American Earth Sciences 3903\. 1–42. Accessed 2019-02-11.

Tremembé Formation

* Do Couto Ribeiro, Graziella. 2010. Avaliação morfológica, taxonômica e cronológica dos mamíferos fósseis da Formação Tremembé (Bacia de Taubaté), Estado de São Paulo, Brasil, 1–112. Universidade de São Paulo.
* Malabarba, Maria Claudia, and John G. Lundberg. 2007. A fossil loricariid catfish (Siluriformes: Loricarioidea) from the Taubaté Basin, eastern Brazil. Neotropical Ichthyology 5\. 263–270. Accessed 2018-10-08.
* Olson, Storrs L., and Herculano M.F. Alvarenga. 2002. A new genus of small teratorn from the Middle Tertiary of the Taubate Basin, Brazil (Aves: Teratornithidae). Proceedings of the Biological Society of Washington 115\. 701–705. Accessed 2017-09-04.

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