Taxonomic names from F. Ameghino 1902
- Abderites crispulus, F. Ameghino 1902 [Abderitidae]
- Abderites crispus, F. Ameghino 1902 [Abderitidae]
- Argyrohippus, F. Ameghino 1902 [Notoungulata]
- Argyrohippus boulei, F. Ameghino 1902 [Notoungulata]
- Argyrohippus fraterculus, F. Ameghino 1902 [Notoungulata]
- Astrapothericulus, F. Ameghino 1902 [Astrapotheriidae]
- Astrapothericulus hebetatus (Ameghino 1891) [Astrapotheriidae]
- Astrapothericulus laeviusculus, F. Ameghino 1902 [Astrapotheriidae]
- Astrapotherium minusculus, Ameghino 1902 [Astrapotheriidae]
- Astrapotherium symmetrum, F. Ameghino 1902 [Astrapotheriidae]
- Astrapotherium triangulidens, F. Ameghino 1902 [Astrapotheriidae]
- Cladosictis centralis, F. Ameghino 1902 [Sparassodonta]
- Cladosictis externa, F. Ameghino 1902 [Sparassodonta]
- Cochilius, F. Ameghino 1902 [Interatheriidae]
- Cochilius columnifer, F. Ameghino 1902 [Interatheriidae]
- Cochilius pendens, F. Ameghino 1902 [Interatheriidae]
- Cochilius volvens, F. Ameghino 1902 [Interatheriidae]
- Colpodon distinctus, F. Ameghino 1902 [Leontiniidae]
- Cramauchenia, F. Ameghino 1902 [Macraucheniidae]
- Cramauchenia insolitus, F. Ameghino 1902 [Macraucheniidae]
- Cramauchenia normalis, F. Ameghino 1902 [Macraucheniidae]
- Cramaucheninae, subfamily, F. Ameghino 1902 [Macraucheniidae]
- Diorotherium colhuehuapense, F. Ameghino 1902 [Homalodontotheridae]
- Eoctodon, F. Ameghino 1902 [Octodontidae]
- Eoctodon securiclatus, F. Ameghino 1902 [Octodontidae]
- Eomannodon, F. Ameghino 1902 [Caenolestidae]
- Eomannodon multitubergulatus, F. Ameghino 1902 [Abderitidae]
- Eosteiromys, F. Ameghino 1902 [Rodentia]
- Eosteiromys homogenidens, F. Ameghino 1902 [Rodentia]
- Hapaloides, F. Ameghino 1902 [Megalonychidae]
- Hapaloides ignavus, F. Ameghino 1902 [Megalonychidae]
- Hapaloides laeviusculus, F. Ameghino 1902 [Megalonychidae]
- Hapaloides ponderosus, F. Ameghino 1902 [Megalonychidae]
- Homunculites pristinus, F. Ameghino 1902 [Abderitidae]
- Leontinia tertiaria, F. Ameghino 1902 [Leontiniidae]
- Luanthus (Ameghino 1899) [Rodentia]
- Luanthus initialis, F. Ameghino 1902 [Rodentia]
- Metopotherinae, subfamily, F. Ameghino 1902 [Megalonychidae]
- Oligobiotherium, F. Ameghino 1902 [Microbiotheriidae]
- Oligobiotherium divisus, F. Ameghino 1902 [Microbiotheriidae]
- Pachybiotherium, F. Ameghino 1902 [Microbiotheriidae]
- Pachybiotherium acclinum, F. Ameghino 1902 [Microbiotheriidae]
- Pachyrucos politus, F. Ameghino 1902 [Notoungulata]
- Palaeocardia, F. Ameghino 1902 [Rodentia]
- Palaeocardia mater, F. Ameghino 1902 [Rodentia]
- Palaepanorthus, F. Ameghino 1902 [Caenolestidae]
- Palaepanorthus primus, F. Ameghino 1902 [Caenolestidae]
- Parabderites, F. Ameghino 1902 [Palaeothentidae]
- Parabderites bicrispatus, F. Ameghino 1902 [Palaeothentidae]
- Parabderites invelatus, F. Ameghino 1902 [Abderitidae]
- Parastrapotherium paucum, F. Ameghino 1902 [Astrapotheriidae]
- Parastrapotherium ruderarium, F. Ameghino 1902 [Astrapotheriidae]
- Peltecoelus, F. Ameghino 1902 [Cingulata]
- Peltecoelus praelucens, F. Ameghino 1902 [Cingulata]
- Peltephilus granosus, F. Ameghino 1902 [Cingulata]
- Perimys dissimilis, F. Ameghino 1902 [Neoepiblemidae]
- Perimys incavatus, F. Ameghino 1902 [Neoepiblemidae]
- Perimys incurvus, F. Ameghino 1902 [Neoepiblemidae]
- Perimys transversus, F. Ameghino 1902 [Neoepiblemidae]
- Pitheculites minimus, F. Ameghino 1902 [Abderitidae]
- Proadinotherium muensteri, F. Ameghino 1902 [Toxodontidae]
- Prochalicotherium, F. Ameghino 1902 [Homalodontotheridae]
- Prochalicotherium patagonicum, F. Ameghino 1902 [Astrapotheriidae]
- Prodasypus centralis, F. Ameghino 1902 [Dasypodidae]
- Proeutatus postpuntum, F. Ameghino 1902 [Chlamyphoridae]
- Prolicaphrium, F. Ameghino 1902 [Proterotheriidae]
- Prolicaphrium festinum, F. Ameghino 1902 [Proterotheriidae]
- Prolicaphrium specillatum, F. Ameghino 1902 [Proterotheriidae]
- Prolicaphrium spectabile, F. Ameghino 1902 [Proterotheriidae]
- Pronesodon vates, F. Ameghino 1902 [Toxodontidae]
- Propalaehoplophorus bilineatus, F. Ameghino 1902 [Propalaehoplophoridae]
- Proschismotherium, F. Ameghino 1902 [Megalonychidae]
- Proschismotherium oppositum, F. Ameghino 1902 [Megalonychidae]
- Prospaniomys, F. Ameghino 1902 [Rodentia]
- Prospaniomys priscus, F. Ameghino 1902 [Rodentia]
- Protacaremys, F. Ameghino 1902 [Rodentia]
- Protacaremys avunculus, F. Ameghino 1902 [Rodentia]
- Protacaremys prior, F. Ameghino 1902 [Rodentia]
- Protacaremys pulchellus, F. Ameghino 1902 [Rodentia]
- Protadelphomys, F. Ameghino 1902 [Rodentia]
- Protadelphomys latus, F. Ameghino 1902 [Rodentia]
- Prothoatherium, F. Ameghino 1902 [Proterotheriidae]
- Prothoatherium lacerum, F. Ameghino 1902 [Proterotheriidae]
- Prothoatherium scamnatum, F. Ameghino 1902 [Proterotheriidae]
- Prozaedyus humilis, F. Ameghino 1902 [Chlamyphoridae]
- Pseudhippus, F. Ameghino 1902 [Notohippidae]
- Pseudhippus tournoueri, F. Ameghino 1902 [Notohippidae]
- Pseudoborhyaena, F. Ameghino 1902 [Sparassodonta]
- Pseudoborhyaena longaeva, F. Ameghino 1902 [Sparassodonta]
- Pseudoborhyaena macrodonta, F. Ameghino 1902 [Sparassodonta]
- Pseudostegotherium, F. Ameghino 1902 [Dasypodidae]
- Pseudostegotherium glangeaudi, F. Ameghino 1902 [Dasypodidae]
- Pseudothylacynus, F. Ameghino 1902 [Sparassodonta]
- Pseudothylacynus rectus, F. Ameghino 1902 [Sparassodonta]
- Stegotherium simplex (F. Ameghino 1887) [Mammalia]
- Stegotherium variegatum, F. Ameghino 1902 [Mammalia]
- Steiromyinae, subfamily, F. Ameghino 1902 [Coendidae]
- Steiromys axiculus, F. Ameghino 1902 [Erethizontidae]
- Steiromys nectus, F. Ameghino 1902 [Erethizontidae]
- Steiromys segregatus, F. Ameghino 1902 [Rodentia]
- Steiromys tabulatus, F. Ameghino 1902 [Erethizontidae]