Deseadan

Period of geologic time (29.0–21.0 Ma) From Wikipedia, the free encyclopedia

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]

Etymology

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

Formations

Deseadan is located in South America
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Locations of Deseadan formations
More information Formation bold is type, Country ...
Formation
bold is type
Country Basin Notes
Deseado Formation ArgentinaDeseado Massif
Abanico Formation ChileAbanico Basin
Agua de la Piedra Formation ArgentinaPrecordillera
Barzalosa Formation ColombiaUpper Magdalena Valley
Castillo Formation VenezuelaFalcón Basin
Chambira Formation PeruUcayali Basin
Chilcatay Formation PeruPisco Basin
Dos Bocas Formation EcuadorProgreso Basin
Fray Bentos Formation Argentina
 Uruguay
Paraná Basin
Monte León Formation ArgentinaAustral Basin
Moquegua Formation PeruMoquegua Basin
Mugrosa Formation ColombiaMiddle Magdalena Valley
Petaca Formation BoliviaSubandean Belt
"Puca Group" - Lacayani fauna BoliviaSubandean Belt
Río Baguales Formation ChileAysén Basin
Salla Formation BoliviaSalla-Luribay Basin
Sarmiento Formation ArgentinaGolfo San Jorge Basin
Tremembé Formation/São Paulo Formation BrazilTaubaté Basin
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Fossils

More information Group, Fossils ...
Group Fossils Formation Notes
MammalsAncylocoelus 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
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
Lophiodolodus chaparralensis, Xenastrapotherium chaparralensis, Proadinotherium sp., Protheosodon sp., Astrapotheriidae indet.Barzalosa
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
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
Urkudelphis chawpipachaDos Bocas
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
Odontoceti indet., Phocidae indet.Gaiman
Diaphorocetus poucheti, Notocetus vanbenedeni, Prosqualodon australis, cf. Kentriodon sp.Monte León
?Rhynchippus sp.Petaca
Eoviscaccia boliviana, Trachytherus spegazzinianus, Cephalomyopsis sp., Glyptatelus sp., Prohegetotherium sp., Borhyaenidae indet., Dasypodidae indet., Macraucheniidae indet., Orophodontidae indet.Lacayani fauna
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
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
cf. Leontinia gaudryiSão Paulo
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
BirdsCladornis pachypus, Cruschedula revolaDeseado
cf. Andrewsornis sp.Agua de la
Piedra
Palaeospheniscus sp.Chilcatay
Devincenzia gallinaliFray Bentos
Eretiscus tonnii, Palaeospheniscus patagonicus, Palaeospheniscus wimani, Paraptenodytes antarcticusGaiman
Arthrodytes andrewsi, Paraptenodytes brodkorbi, P. robustus, Pseudospheniscus concavusMonte León
Spheniscidae indet.Río
Baguales
Phorusrhacidae indet.Salla
Physornis sp.Sarmiento
Paraphysornis brasiliensis, Taubatornis campbelliTremembé
Phorusrhacidae indet.Moquegua
Reptiles &
amphibians
Balanerodus logimus, Gavialidae indet.Barzalosa
?Balanerodus sp., Podocnemis sp., cf. Purussaurus sp., cf. Sebecus sp., Anura indet., Booidea indet., Caimaninae indet., Colubroidea indet., Gavialoidea indet., Serpentes indet.Chambira
Testudines indet.Chilcatay
Testudinidae indet.Fray Bentos
Eusuchia indet., Sebecosuchia indet.Mugrosa
?Chelonoidis sp.Petaca
cf. Calyptocephalella sp., Testudines indet.Salla
Calyptocephalella canqueli, Neoprocoela edentatus, Eupsophus sp., ?Madtsoia sp., Iguaninae indet., Sebecidae indet.Sarmiento
Caiman tremembensisTremembé
Fishescf. Hydrolycus sp., Leporinus sp., cf. Phractocephalus sp., Potamotrygon sp., Actinopterygii indet., Cichlidae indet., ?Erythrinidae indet., Loricariidae indet., Pimelodidae indet.Chambira
Carcharhinus cf. brachurus, Carcharodon hastalis, Carcharodon subauriculatus, Hemipristis cf. serra, Isurus desoriChilcatay
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
Isurus dolloi, Striatolamia macrota, Abdounia sp.Río
Baguales
Taubateia paraibaTremembé
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
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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.

More information Formation, Agua ...
Deseadan correlations in South America
FormationAguaRancahuéGuillermoDeseadoSarmientoSallaLacayaniFray BentosMoqueguaChambiraBarzalosaTremembéCascadasMap
BasinNeuquénAustralDeseadoSan JorgeSallaSubandeanNorteMoqueguaUcayaliVSMTaubatéPanama
Deseadan is located in South America
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Deseadan (South America)
Country Argentina Bolivia Uruguay Peru Colombia Brazil Panama
Archaeohyrax
Prohegetotherium
Pyrotherium
Pharsophorus
Trachytherus
Proadinotherium
Proborhyaena
Meteutatus
Andrewsornis
Terror birds
Rodents
Reptiles
Primates
Flora
Insects
EnvironmentsAlluvialFluvialFluvialAlluvialFluvial-alluvialFluvialFluvio-lacustrineAlluvial-fluvialLacustrineFluvial
Deseadan volcanoclastics

Deseadan fauna

Deseadan flora
VolcanicYesYesYesYesYesYes
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References

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