PERSONAL DE APOYO
REGUERO Marcelo Alfredo
artículos
Título:
NEW LATE OLIGOCENE HEGETOTHERIIDAE (MAMMALIA, NOTOUNGULATA) FROM SALLA, BOLIVIA
Autor/es:
CERDEÑO, E.; REGUERO, M.A.
Revista:
JOURNAL OF VERTEBRATE PALEONTOLOGY
Editorial:
SOC VERTEBRATE PALEONTOLOGY
Referencias:
Lugar: Lawrence; Año: 2005 p. 674 - 684
ISSN:
0272-4634
Resumen:
The diverse fauna from Salla, western Bolivia, represents a rare glimpse into the evolutionary history of
Tertiary South American mammals outside of Patagonia (Argentina). The Hegetotheriidae (Notoungulata) from the
Deseadan of Salla are composed of two taxa, a new genus and species and a species of Prohegetotherium. Sallatherium
altiplanense gen. et sp. nov., differs from Prohegetotherium by its very long, thin nasals; more medially placed labial groove
on upper cheek teeth; more reduced I2-I3-C and i3-c separated by diastemata; and much narrower symphysis. The
smaller, more common hegetothere from Salla is identified as Prohegetotherium schiaffinoi; the abundant new material
from Bolivia permits a better characterization of this otherwise poorly known species from Uruguay and Argentina
(Corrientes and Entre Ríos provinces). The Divisaderan Ethegotherium carettei from Argentina is regarded as a junior
synonym of P. schiaffinoi, extending the chronologic range of the genus into the early Oligocene. A revised diagnosis of
the type species of Prohegetotherium, P. sculptum, is provided based on new material. This species is known exclusively
from Argentina.Prohegetotherium. Sallatherium
altiplanense gen. et sp. nov., differs from Prohegetotherium by its very long, thin nasals; more medially placed labial groove
on upper cheek teeth; more reduced I2-I3-C and i3-c separated by diastemata; and much narrower symphysis. The
smaller, more common hegetothere from Salla is identified as Prohegetotherium schiaffinoi; the abundant new material
from Bolivia permits a better characterization of this otherwise poorly known species from Uruguay and Argentina
(Corrientes and Entre Ríos provinces). The Divisaderan Ethegotherium carettei from Argentina is regarded as a junior
synonym of P. schiaffinoi, extending the chronologic range of the genus into the early Oligocene. A revised diagnosis of
the type species of Prohegetotherium, P. sculptum, is provided based on new material. This species is known exclusively
from Argentina.gen. et sp. nov., differs from Prohegetotherium by its very long, thin nasals; more medially placed labial groove
on upper cheek teeth; more reduced I2-I3-C and i3-c separated by diastemata; and much narrower symphysis. The
smaller, more common hegetothere from Salla is identified as Prohegetotherium schiaffinoi; the abundant new material
from Bolivia permits a better characterization of this otherwise poorly known species from Uruguay and Argentina
(Corrientes and Entre Ríos provinces). The Divisaderan Ethegotherium carettei from Argentina is regarded as a junior
synonym of P. schiaffinoi, extending the chronologic range of the genus into the early Oligocene. A revised diagnosis of
the type species of Prohegetotherium, P. sculptum, is provided based on new material. This species is known exclusively
from Argentina.Prohegetotherium schiaffinoi; the abundant new material
from Bolivia permits a better characterization of this otherwise poorly known species from Uruguay and Argentina
(Corrientes and Entre Ríos provinces). The Divisaderan Ethegotherium carettei from Argentina is regarded as a junior
synonym of P. schiaffinoi, extending the chronologic range of the genus into the early Oligocene. A revised diagnosis of
the type species of Prohegetotherium, P. sculptum, is provided based on new material. This species is known exclusively
from Argentina.Ethegotherium carettei from Argentina is regarded as a junior
synonym of P. schiaffinoi, extending the chronologic range of the genus into the early Oligocene. A revised diagnosis of
the type species of Prohegetotherium, P. sculptum, is provided based on new material. This species is known exclusively
from Argentina.P. schiaffinoi, extending the chronologic range of the genus into the early Oligocene. A revised diagnosis of
the type species of Prohegetotherium, P. sculptum, is provided based on new material. This species is known exclusively
from Argentina.Prohegetotherium, P. sculptum, is provided based on new material. This species is known exclusively
from Argentina.
