INVESTIGADORES
ZURITA Alfredo Eduardo
congresos y reuniones científicas
Título:
THE TAYASSUIDAE (MAMMALIA, ARTIODACTYLA) FROM TARIJA VALLEY, BOLIVIA: A PALAEOFAUNAL UPDATE
Autor/es:
GASPARINI, G. M.; SOIBELZON, E.; ZURITA, A. E; MIÑO-BOILINI, A.R.
Lugar:
Neuquen
Reunión:
Congreso; III Congreso Latinoamericano de Paleontología de Vertebrados; 2008
Institución organizadora:
APA y Universidad Nacional del Comahué
Resumen:
Three genera of Tayassuidae are recognized in South America: Platygonus Le Conte, 1848; Catagonus Ameghino, 1904; and Tayassu Fischer, 1814. The greatest generic and specific diversity of Tayassuidae in South America derives from the sediments exposed in Argentina. The family has also been found in Brazil, Uruguay, Bolivia, Colombia; together with doubtful records from Peru (Gasparini 2007 and bibliographies cited therein). In Bolivia, tayassuids have been recorded in the Tarija Valley (Ameghino 1904, Boule and Thévenin 1920, Rusconi 1930, Hoffstetter 1963, Takai et al. 1982), between Mojotorillo and Khoña Paya localities, Potosí department (Daza and Shockey 1999) and in the Ñuapua Formation (Ñuapua 1 Member, basal portion of the formation), between Carandaití and Capiranda (Marshall and  Sempere 1991). This study provides the first systematic review of the Pleistocene tayassuids reported from Bolivia. Catagonus stenocephalus (Lund in Reinhardt, 1880) is documented for the first time in Bolivia, significantly extending its range to central-eastern Argentina and southern Brazil. On available evidence (a single molar), we can not confirm that Platygonus tarijensis (Ameghino, 1904) represents a distinct species, but its generic allocation is appropriate. The record of Platygonus in the Tarija Valley suggest the possible coexistence of Platygonus and Catagonus during the Pleistocene in Bolivia. Both taxa from Bolivia have anatomical adaptations to arid or semiarid and relatively open environments, which is consistent with the palaeoenvironmental interpretation recently proposed for the Tarija Valley. The veracity of other records of the family from Bolivia can not be confirmed. Three genera of Tayassuidae are recognized in South America: Platygonus Le Conte, 1848; Catagonus Ameghino, 1904; and Tayassu Fischer, 1814. The greatest generic and specific diversity of Tayassuidae in South America derives from the sediments exposed in Argentina. The family has also been found in Brazil, Uruguay, Bolivia, Colombia; together with doubtful records from Peru (Gasparini 2007 and bibliographies cited therein). In Bolivia, tayassuids have been recorded in the Tarija Valley (Ameghino 1904, Boule and Thévenin 1920, Rusconi 1930, Hoffstetter 1963, Takai et al. 1982), between Mojotorillo and Khoña Paya localities, Potosí department (Daza and Shockey 1999) and in the Ñuapua Formation (Ñuapua 1 Member, basal portion of the formation), between Carandaití and Capiranda (Marshall and  Sempere 1991). This study provides the first systematic review of the Pleistocene tayassuids reported from Bolivia. Catagonus stenocephalus (Lund in Reinhardt, 1880) is documented for the first time in Bolivia, significantly extending its range to central-eastern Argentina and southern Brazil. On available evidence (a single molar), we can not confirm that Platygonus tarijensis (Ameghino, 1904) represents a distinct species, but its generic allocation is appropriate. The record of Platygonus in the Tarija Valley suggest the possible coexistence of Platygonus and Catagonus during the Pleistocene in Bolivia. Both taxa from Bolivia have anatomical adaptations to arid or semiarid and relatively open environments, which is consistent with the palaeoenvironmental interpretation recently proposed for the Tarija Valley. The veracity of other records of the family from Bolivia can not be confirmed. Three genera of Tayassuidae are recognized in South America: Platygonus Le Conte, 1848; Catagonus Ameghino, 1904; and Tayassu Fischer, 1814. The greatest generic and specific diversity of Tayassuidae in South America derives from the sediments exposed in Argentina. The family has also been found in Brazil, Uruguay, Bolivia, Colombia; together with doubtful records from Peru (Gasparini 2007 and bibliographies cited therein). In Bolivia, tayassuids have been recorded in the Tarija Valley (Ameghino 1904, Boule and Thévenin 1920, Rusconi 1930, Hoffstetter 1963, Takai et al. 1982), between Mojotorillo and Khoña Paya localities, Potosí department (Daza and Shockey 1999) and in the Ñuapua Formation (Ñuapua 1 Member, basal portion of the formation), between Carandaití and Capiranda (Marshall and  Sempere 1991). This study provides the first systematic review of the Pleistocene tayassuids reported from Bolivia. Catagonus stenocephalus (Lund in Reinhardt, 1880) is documented for the first time in Bolivia, significantly extending its range to central-eastern Argentina and southern Brazil. On available evidence (a single molar), we can not confirm that Platygonus tarijensis (Ameghino, 1904) represents a distinct species, but its generic allocation is appropriate. The record of Platygonus in the Tarija Valley suggest the possible coexistence of Platygonus and Catagonus during the Pleistocene in Bolivia. Both taxa from Bolivia have anatomical adaptations to arid or semiarid and relatively open environments, which is consistent with the palaeoenvironmental interpretation recently proposed for the Tarija Valley. The veracity of other records of the family from Bolivia can not be confirmed. Three genera of Tayassuidae are recognized in South America: Platygonus Le Conte, 1848; Catagonus Ameghino, 1904; and Tayassu Fischer, 1814. The greatest generic and specific diversity of Tayassuidae in South America derives from the sediments exposed in Argentina. The family has also been found in Brazil, Uruguay, Bolivia, Colombia; together with doubtful records from Peru (Gasparini 2007 and bibliographies cited therein). In Bolivia, tayassuids have been recorded in the Tarija Valley (Ameghino 1904, Boule and Thévenin 1920, Rusconi 1930, Hoffstetter 1963, Takai et al. 1982), between Mojotorillo and Khoña Paya localities, Potosí department (Daza and Shockey 1999) and in the Ñuapua Formation (Ñuapua 1 Member, basal portion of the formation), between Carandaití and Capiranda (Marshall and  Sempere 1991). This study provides the first systematic review of the Pleistocene tayassuids reported from Bolivia. Catagonus stenocephalus (Lund in Reinhardt, 1880) is documented for the first time in Bolivia, significantly extending its range to central-eastern Argentina and southern Brazil. On available evidence (a single molar), we can not confirm that Platygonus tarijensis (Ameghino, 1904) represents a distinct species, but its generic allocation is appropriate. The record of Platygonus in the Tarija Valley suggest the possible coexistence of Platygonus and Catagonus during the Pleistocene in Bolivia. Both taxa from Bolivia have anatomical adaptations to arid or semiarid and relatively open environments, which is consistent with the palaeoenvironmental interpretation recently proposed for the Tarija Valley. The veracity of other records of the family from Bolivia can not be confirmed.