Classification of Simpson 1967
Cl. Mammalia Linnaeus 1758 [mammal]
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G. †Eutrochodon Roth 1904
Invalid names: Anagonia Ameghino 1904 [nomen dubium], Anagonia insulata Ameghino 1904 [nomen dubium], Anisorhizus Ameghino 1902 [nomen dubium], Anisorhizus atriarius Ameghino 1902 [nomen dubium], Diplodon ampliatus Roth 1902 [nomen vanum], Diplodonops Ameghino 1902 [nomen vanum], Isolophodon aplanatus Roth 1904 [nomen vanum], Lambdaconus Ameghino 1897 [nomen vanum], Lambdaconus suinus Ameghino 1897 [nomen vanum], Pachypithecus Ameghino 1897 [nomen dubium], Pachypithecus macrognathus Ameghino 1897 [nomen dubium], Picunia Roth 1902 [nomen dubium], Proplanodus Ameghino 1902 [nomen dubium], Proplanodus adnepos Ameghino 1902 [nomen dubium], Prostylophorus Roth 1902 [nomen dubium], Prostylophorus margeriei Roth 1902 [nomen dubium], Protobradidae Ameghino 1902 [invalid subgroup], Protobradys Ameghino 1902 [nomen vanum], Protobradys harmonicus Ameghino 1902 [nomen vanum], Stenogenium aenigmaticum Ameghino 1901 [nomen dubium]
Or. †Condylarthra Cope 1881
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Fm. †Didolodontidae Simpson 1934
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G. †Didolodus Ameghino 1897
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†Didolodus conidens Ameghino 1904
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Invalid names: Argyrolambda conulifera Ameghino 1904 [objective synonym]
†Didolodus minor Simpson 1948
†Didolodus multicuspis Ameghino 1897
Invalid names: Argyrolambda Ameghino 1904 [synonym]
Or. †Notoungulata Roth 1903 [notoungulate]
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Subor. †Hegetotheria Simpson 1945
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Fm. †Archaeohyracidae Ameghino 1897
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G. †Bryanpattersonia Simpson 1967
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†Bryanpattersonia nesodontoides Ameghino 1901
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Invalid names: Eomorphippus rutilatus Ameghino 1901 [synonym]
†Bryanpattersonia sulcidens Ameghino 1902
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Invalid names: Archaeohyrax gracilis Roth 1904 [synonym]
G. †Eohyrax Ameghino 1901
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†Eohyrax isotemnoides Ameghino 1904
†Eohyrax platyodus Ameghino 1904
†Eohyrax praerusticus Ameghino 1902
†Eohyrax rusticus Ameghino 1901
Invalid names: Eohyrax brachyodus Ameghino 1902 [nomen vanum]
G. †Isolophodon Roth 1903
G. †Pseudhyrax Ameghino 1901
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†Pseudhyrax eutrachytheroides Ameghino 1901
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Invalid names: Degonia kollmanni Roth 1902 [synonym], Pseudopithecus modestus Roth 1902 [synonym], Rankelia elegans Roth 1902 [synonym]
†Pseudhyrax strangulatus Ameghino 1901
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Invalid names: Trimerostephanos cuneolus Ameghino 1901 [synonym]
Invalid names: Degonia Roth 1902 [synonym], Pseudopithecus Roth 1902 [synonym], Rankelia Roth 1902 [synonym]
Subor. †Toxodontia Ameghino 1887
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Fm. †Isotemnidae Ameghino 1897
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G. †Acoelohyrax Ameghino 1902
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†Acoelohyrax coalitus Ameghino 1901
†Acoelohyrax coarctatus Ameghino 1901
†Acoelohyrax complicatissimus Ameghino 1904
†Acoelohyrax coronatus Ameghino 1902
†Acoelohyrax sigma Ameghino 1901
Invalid names: Plexotemnus Ameghino 1904 [synonym]
G. †Anisotemnus Ameghino 1902
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†Anisotemnus distentus Ameghino 1901
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Invalid names: Isotemnus lophiodontoides Ameghino 1901 [synonym]
Invalid names: Toxotemnus Ameghino 1904 [synonym]
G. †Distylophorus Ameghino 1902
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†Distylophorus alouatinus Roth 1902
Invalid names: Stylophorus Roth 1902 [replaced]
G. †Isotemnus Ameghino 1897
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†Isotemnus ctalego Simpson 1935
†Isotemnus haugi Roth 1902
†Isotemnus latidens Ameghino 1901
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Invalid names: Eochalicotherium crassidens Ameghino 1901 [synonym], Eochalicotherium robustum Ameghino 1901 [synonym], Isotemnus apicatus Ameghino 1901 [synonym], Isotemnus cuspidatus Ameghino 1901 [synonym], Isotemnus enecatus Ameghino 1901 [synonym]
†Isotemnus primitivus Ameghino 1897
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Invalid names: Amphitemnus nucleatus Ameghino 1904 [synonym], Amphitemnus transitorius Ameghino 1904 [synonym], Eochalicotherium cretaceum Ameghino 1901 [synonym], Isotemnus conspiquus Ameghino 1897 [synonym], Trimerostephanos angustus Ameghino 1897 [synonym]
Invalid names: Amphitemnus Ameghino 1904 [synonym], Dimerostephanos Ameghino 1902 [synonym], Eochalicotherium Ameghino 1901 [synonym], Isotemnus colhuehuapiensis Ameghino 1902 [nomen vanum], Lelfunia Roth 1902 [synonym], Prostylops Ameghino 1897 [synonym], Prostylops typus Ameghino 1897 [nomen dubium]
G. †Periphragnis Roth 1899
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†Periphragnis circunflexus Ameghino 1901
†Periphragnis exauctus Ameghino 1902
†Periphragnis harmeri Roth 1899
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Invalid names: Asmodeus armatus Ameghino 1901 [synonym], Calodontotherium varietatum Roth 1904 [synonym], Eurystephanodon cattanii Roth 1904 [synonym], Lemudeus angustidens Roth 1904 [synonym], Periphragnis cristatus Roth 1904 [synonym], Tehuelia regia Roth 1902 [synonym], Thomashuxleya rankei Roth 1902 [synonym]
†Periphragnis palmeri Roth 1904
Invalid names: Coelodontotherium Roth 1903 [synonym], Lemudeus Roth 1903 [synonym], Proasmodeus Ameghino 1902 [synonym], Tehuelia Roth 1902 [synonym]
G. †Pleurostylodon Ameghino 1897
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†Pleurostylodon complanatus Ameghino 1902
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Invalid names: Pleurostylodon irregularis Ameghino 1904 [synonym], Pleurostylodon neglectus Ameghino 1904 [synonym]
†Pleurostylodon crassiramis Ameghino 1902
†Pleurostylodon modicus Ameghino 1897
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Invalid names: Anchistrum sulcosum Ameghino 1901 [synonym], Dialophus simus Ameghino 1901 [synonym], Dimerostephanos attritus Ameghino 1902 [synonym], Parastylops coelodus Ameghino 1897 [synonym], Paratemnus geminatus Ameghino 1904 [synonym], Pleurostylodon divisus Ameghino 1901 [synonym], Pleurostylodon limpidus Ameghino 1904 [synonym], Pleurostylodon obscurus Ameghino 1904 [synonym], Pleurostylodon plexus Ameghino 1901 [synonym], Pleurostylodon sinuosus Ameghino 1902 [synonym], Trimerostephanos biconus Ameghino 1897 [synonym], Tychostylops marculus Ameghino 1901 [synonym]
†Pleurostylodon recticrista Ameghino 1904
†Pleurostylodon similis Ameghino 1901
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Invalid names: Coelostylops crassus Ameghino 1901 [synonym], Tychostylops simus Ameghino 1904 [synonym]
Invalid names: Anchistrum Ameghino 1901 [synonym], Coelostylops Ameghino 1901 [synonym], Dialophus Ameghino 1901 [synonym], Parastylops Ameghino 1897 [synonym], Paratemnus Ameghino 1904 [synonym], Pleurostylodon bifidus Ameghino 1904 [nomen dubium], Pleurostylodon notabilis Ameghino 1901 [nomen dubium], Porotemnus Ameghino 1902 [synonym], Tychostylops Ameghino 1901 [synonym]
G. †Rhyphodon Roth 1899
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†Rhyphodon angusticephalus Roth 1904
†Rhyphodon lankesteri Roth 1899
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Invalid names: Lemudeus proportionalis Roth 1904 [synonym], Pehuenia insigna Roth 1904 [synonym], Pehuenia wehrlii Roth 1902 [synonym], Setebos terribilis Roth 1902 [synonym]
Invalid names: Pehuenia Roth 1902 [synonym], Setebos Roth 1902 [synonym]
G. †Thomashuxleya Ameghino 1901
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†Thomashuxleya rostrata Ameghino 1901
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Invalid names: Thomashuxleya robusta Ameghino 1901 [synonym]
Invalid names: Colhuapia Roth 1902 [nomen dubium], Colhuapia rosei Roth 1902 [nomen dubium], Colhuelia Roth 1902 [nomen dubium], Eurystephanodon crassatus Roth 1903 [nomen dubium], Interhippus deflexus Ameghino 1902 [nomen dubium], Lafkenia Roth 1902 [nomen dubium], Lafkenia schmidti Roth 1902 [nomen dubium], Lafkenia sulcifera Roth 1902 [nomen dubium], Pehuenia magna Roth 1904 [nomen dubium], Thomashuxleya principialis Ameghino 1902 [nomen dubium], Trigonolophodon modicus Roth 1904 [nomen dubium]
Fm. †Notohippidae Ameghino 1894
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G. †Eomorphippus Ameghino 1901
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†Eomorphippus obscurus Ameghino 1901
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Invalid names: Eurystomus stehlini Roth 1902 [synonym], Lonkus rugei Roth 1902 [synonym], Pseudostylops subquadratus Ameghino 1901 [synonym]
†Eomorphippus pascuali Simpson 1967
Invalid names: Eurystomus Roth 1902 [synonym], Pleurystomus Ameghino 1902 [synonym], Pseudostylops Ameghino 1901 [synonym]
Invalid names: Interhippus Ameghino 1902 [nomen dubium], Rhynchippidae Loomis 1914 [synonym]
Subor. †Typotheria Zittel 1892
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Fm. †Archaeopithecidae Ameghino 1897
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G. †Acropithecus Ameghino 1904
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†Acropithecus rigidus Ameghino 1901
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Invalid names: Acropithecus tersus Ameghino 1904 [synonym], Archaeopithecus alternans Ameghino 1901 [synonym]
Fm. †Interatheriidae Ameghino 1887
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Subfm. †Notopithecinae Ameghino 1897
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G. †Antepithecus Ameghino 1901
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†Antepithecus brachystephanus Ameghino 1901
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Invalid names: Antepithecus interrasus Ameghino 1904 [synonym], Infrapithecus cinctus Ameghino 1901 [synonym], Patriarchippus annectens Ameghino 1904 [synonym], Pseudadiantus imperfectus Ameghino 1901 [synonym], Pseudadiantus secans Ameghino 1901 [synonym]
†Antepithecus innexus Ameghino 1904
Invalid names: Infrapithecus Ameghino 1901 [synonym], Patriarchippus Ameghino 1904 [synonym], Pseudadiantus Ameghino 1901 [synonym]
G. †Notopithecus Ameghino 1897
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†Notopithecus adapinus Ameghino 1897
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Invalid names: Adpithecus reduncus Ameghino 1902 [synonym], Adpithecus secans Ameghino 1901 [synonym], Adpithecus subtenuis Ameghino 1902 [synonym], Antepithecus gradatus Ameghino 1904 [synonym], Epipithecus confluens Ameghino 1904 [synonym], Gonopithecus trigonodontoides Ameghino 1904 [synonym], Infrapithecus diversus Ameghino 1902 [synonym]
†Notopithecus amplidens Ameghino 1901
Invalid names: Adpithecus Ameghino 1901 [synonym], Epipithecus Ameghino 1904 [synonym], Gonopithecus Ameghino 1904 [synonym]
Fm. †Oldfieldthomasiidae Simpson 1945
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G. †Acoelodus Ameghino 1897
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†Acoelodus oppositus Ameghino 1897
†Acoelodus proclivus Ameghino 1902
†Acoelodus terminalis Ameghino 1902
G. †Maxschlosseria Ameghino 1901
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†Maxschlosseria consumata Ameghino 1901
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Invalid names: Eostylops obliquatus Ameghino 1901 [synonym]
†Maxschlosseria expansa Ameghino 1902
†Maxschlosseria minima Ameghino 1897
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Invalid names: Antepithecus plexostephanos Ameghino 1902 [synonym], Maxschlosseria anatona Ameghino 1902 [synonym]
†Maxschlosseria minuta Ameghino 1901
†Maxschlosseria praeterita Ameghino 1901
†Maxschlosseria rusticula Ameghino 1901
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Invalid names: Isotemnus emundatus Ameghino 1901 [synonym], Oldfieldthomasia marginalis Ameghino 1901 [synonym]
†Maxschlosseria septa Ameghino 1901
Invalid names: Paracoelodus Ameghino 1904 [synonym]
G. †Oldfieldthomasia Ameghino 1901
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†Oldfieldthomasia anfractuosa Ameghino 1901
†Oldfieldthomasia debilitata Ameghino 1901
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Invalid names: Oldfieldthomasia cingulata Ameghino 1901 [synonym], Oldfieldthomasia conifera Ameghino 1901 [synonym], Oldfieldthomasia cuneata Ameghino 1901 [synonym], Oldfieldthomasia furcata Ameghino 1901 [synonym], Oldfieldthomasia plicata Ameghino 1904 [synonym]
†Oldfieldthomasia parvidens Ameghino 1901
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Invalid names: Oldfieldthomasia pulchella Ameghino 1901 [synonym]
†Oldfieldthomasia transversa Ameghino 1901
G. †Paginula Ameghino 1901
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†Paginula parca Ameghino 1901
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Invalid names: Acoelodus connectus Ameghino 1901 [synonym], Acoelodus microdon Ameghino 1901 [synonym]
Invalid names: Acoelodidae Ameghino 1901 [synonym]
Invalid names: Archaeotypotherium Roth 1903 [nomen vanum], Archaeotypotherium transitum Roth 1904 [nomen vanum], Brandmayria Cabrera 1935 [nomen dubium], Brandmayria simpsoni Cabrera 1935 [nomen dubium], Carolodarwinia Ameghino 1901 [nomen dubium], Carolodarwinia pyramidentata Ameghino 1901 [nomen dubium], Claenodon patagonicus Ameghino 1904 [nomen dubium], Degonia sympathica Roth 1902 [nomen dubium], Edvardocopeia Ameghino 1901 [nomen dubium], Edvardocopeia sinuosa Ameghino 1901 [nomen dubium], Epitypotherium cancellatum Ameghino 1904 [nomen dubium], Isotypotherium Ameghino 1904 [nomen dubium], Lophiodonticulus Ameghino 1902 [nomen dubium], Lophiodonticulus patagonicus Ameghino 1902 [nomen dubium], Lophiodonticulus retroversus Ameghino 1902 [nomen dubium], Notopithecus summus Ameghino 1897 [nomen dubium], Orthogenium Roth 1902 [nomen dubium], Orthogenium ameghinoi Roth 1902 [nomen vanum], Ortholophodon Roth 1902 [nomen dubium], Pleurostylops Ameghino 1901 [nomen dubium], Pleurostylops glebosus Ameghino 1901 [nomen dubium], Procolpodon Ameghino 1904 [nomen dubium], Procolpodon foratus Ameghino 1904 [nomen dubium], Puelia Roth 1902 [nomen dubium], Puelia plicata Roth 1902 [nomen dubium], Pyramidon Roth 1902 [nomen dubium], Pyramidon klaatschi Roth 1902 [nomen dubium], Tonostylops Ameghino 1902 [nomen dubium], Tonostylops spissus Ameghino 1902 [nomen dubium], Trimerostephanos ultimus Ameghino 1901 [nomen vanum], Ultrapithecus robustus Roth 1902 [nomen dubium]
G. †Mesotherium Serres 1867
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Invalid names: Typotherium Bravard 1856 [objective synonym]
Or. †Astrapotheria Lydekker 1894
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Fm. †Astrapotheriidae Ameghino 1887
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G. †Astraponotus Ameghino 1901
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†Astraponotus assymmetrus Ameghino 1901
†Astraponotus dicksoni Roth 1904
†Astraponotus dilatatus Roth 1904
†Astraponotus holdichi Roth 1904
†Astraponotus thompsoni Roth 1904
Invalid names: Megalophodon Roth 1903 [synonym], Notamynus Roth 1903 [synonym]
Invalid names: Blastoconus Roth 1903 [nomen dubium], Blastoconus robertsoni Roth 1904 [nomen dubium], Grypolophodon Roth 1903 [nomen vanum], Grypolophodon morenoi Roth 1904 [nomen vanum], Grypolophodon tuberculosis Roth 1904 [nomen vanum], Notorhinus Roth 1903 [nomen vanum], Notorhinus haroldi Roth 1904 [nomen vanum]
Or. †Litopterna Ameghino 1889
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Fm. †Proterotheriidae Ameghino 1887
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G. †Josepholeidya Ameghino 1901
Invalid names: Anisolambda nodulosa Roth 1904 [nomen vanum]
Or. †Xenungulata Paula Couto 1952
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Fm. †Carodniidae Paula Couto 1952
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Subor. †Pyrotheria Ameghino 1895
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G. †Carolozittelia Ameghino 1901
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†Carolozittelia tapiroides Ameghino 1901
Invalid names: Carolozittelia eluta Ameghino 1901 [nomen dubium]
Fm. †Pyrotheriidae Ameghino 1889
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Invalid names: Promoeritherium Ameghino 1906 [nomen dubium], Promoeritherium australe Ameghino 1906 [nomen dubium]
G. †Trigonolophodon Roth 1903
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†Trigonolophodon elegans Roth 1904
†Trigonolophodon inflatus Roth 1904
Superor. Ungulata Linnaeus 1766
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Invalid names: Trigonostylopoidea Simpson 1934 [empty]
Or. Marsupialia Illiger 1811 [marsupial]
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Invalid names: Odontomysopidae Ameghino 1902 [invalid subgroup], Odontomysops Ameghino 1902 [nomen vanum], Odontomysops spiniferus Ameghino 1902 [nomen vanum], Promysops primarius Ameghino 1902 [nomen vanum]