Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Cladus: Synapsida
Cladus: Eupelycosauria
Cladus: Sphenacodontia
Cladus: Sphenacodontoidea
Cladus: Therapsida
Cladus: Theriodontia
Subordo: Cynodontia
Infraordo: Eucynodontia
Cladus: Probainognathia
Cladus: Prozostrodontia
Cladus: Mammaliaformes
Classis: Mammalia
Subclassis: Trechnotheria
Infraclassis: Zatheria
Supercohors: Theria
Cohors: Eutheria
Infraclassis: Placentalia
Cladus: Boreoeutheria
Superordo: Euarchontoglires
Ordo: Rodentia
Subordo: Hystricomorpha
Infraordo: Hystricognathi
Parvordo: Caviomorpha
Superfamilia: Chinchilloidea
Familia: Chinchillidae
Genus: Eoviscaccia
Species:
Name
Eoviscaccia
Primary references
2012: DOI: 10.1206/3750.2
Eoviscaccia is an extinct genus of chinchillid rodent that lived during the Early Oligocene (Tinguirirican) to the Early Miocene (Colhuehuapian) in what is now South America. Fossils of this genus have been found in the Cerro Bandera,[1] Chichinales,[2] Fray Bentos,[3] and Sarmiento Formations[4][5][6] of Argentina, the Salla Formation of Bolivia,[6] and the Abanico Formation of Chile.[7]
Taxonomy
Eoviscaccia was first described by María Guiomar Vucetich in 1989 based on remains found in the Salla Formation of Bolivia and the Sarmiento Formation of Chubut Province, Argentina, with the proposed type species being Eoviscaccia boliviana.[6] Two other species, E. australis and E. frassinettii, were both named in 1989 and 2012 respectively, with E. australis being found in Chubut, Entre Ríos, Neuquén, and Río Negro Provinces of Argentina, while E. frassinettii was found in the Abanico Formation of Chile.[7]
The following cladogram of the Caviomorpha is based on Busker et al. 2020, showing the position of Eoviscaccia.[8]
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References
Kramarz, Alejandro; Garrido, Alberto; Forasiepi, Analía; Bond, Mariano; Tambussi, Claudia (2005). "Stratigraphy and vertebrates (Aves and Mammalia) from the Cerro Bandera Formation, Early Miocene of Neuquén Province, Argentina". Revista Geológica de Chile. 32 (2). doi:10.4067/S0716-02082005000200006.
Madden, Richard H.; Carlini, Alfredo A.; Vucetich, Maria Guiomar; Kay, Richard F. (2010-06-17). "Colhuehuapian rodents from Gran Barranca and other Patagonian localities: the state of the art.". The Paleontology of Gran Barranca: Evolution and Environmental Change Through the Middle Cenozoic of Patagonia. Cambridge University Press. ISBN 978-0-521-87241-6.
Bond, Mariano; López, Guillermo; Reguero, Marcelo A.; Scillato-Yané, Gustavo J.; Vucetich, María G. (1998). "Los mamíferos de la Formación Fray Bentos (Edad Mamífero Deseadense, Oligoceno superior?) de las provincias de Corrientes y Entre Ríos, Argentina". Publicación Electrónica de la Asociación Paleontológica Argentina (in Spanish). 5 (1). ISSN 2469-0228.
Kramarz, Alejandro Gustavo (2001). "Registro de Eoviscaccia (Rodentia, Chinchillidae) en estratos colhuehuapenses de Patagonia, Argentina". Ameghininia (in Spanish). 38 (3): 237–242. ISSN 1851-8044.
Arnal, M.; Vucetich, M.G. (2015-01-02). "Revision of the fossil rodent Acaremys Ameghino, 1887 (Hystricognathi, Octodontoidea, Acaremyidae) from the Miocene of Patagonia (Argentina) and the description of a new acaremyid". Historical Biology. 27 (1): 42–59. doi:10.1080/08912963.2013.863881. ISSN 0891-2963.
Vucetich, María Guiomar (1989). "Rodents (Mammalia) of the Lacayani fauna revisited (Deseadan, Bolivia). Comparison with new Chinchillidae and Cephalomyidae from Argentina". Bulletin du Muséum national d'histoire naturelle. 11 (4): 233–247.
Bertrand, Ornella C.; Flynn, John J.; Croft, Darin A.; Wyss, Andre R. (2012). "Two New Taxa (Caviomorpha, Rodentia) from the Early Oligocene Tinguiririca Fauna (Chile)". American Museum Novitates. 2012 (3750): 1–36. doi:10.1206/3750.2. ISSN 0003-0082.
Busker, Felipe; Dozo, María Teresa; Soto, Ignacio María (2020-10-01). "New remains of Cephalomys arcidens (Rodentia, Caviomorpha) and a redefinition of the enigmatic Cephalomyidae". Journal of Systematic Palaeontology. 18 (19): 1589–1629. doi:10.1080/14772019.2020.1796833. ISSN 1477-2019. S2CID 225308634.
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