Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: Rangapur

Sortuj według:

Ogranicz wyniki do:

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

New Late Cretaceous mammals from the Intertrappean beds of Rangapur, India and paleobiogeographic framework

100%

Rana R. S., Wilson G. P.

Acta Palaeontologica Polonica

2003

tom 48

nr 3

A new mammal−bearing locality from the Intertrappean beds (Maastricthian) of Rangapur, Andhra Pradesh, India provides isolated teeth referable to Deccanolestes and a new eutherian, Sahnitherium rangapurensis. Dental comparisons with Cimolestes, Procerberus, and Aboletylestes do not support proposed “palaeoryctoid” affinities for Deccanolestes. Although similarities exist with Otlestes and Batodon, Deccanolestes is currently considered to be of uncertain familial affinities. Sahnitherium rangapurensis exhibits similarities to Procerberus, Paranyctoides, Alostera, Aboletylestes, and Avitotherium, but it is here placed within Eutheria incertae sedis. Despite family level taxonomic uncertainties, the new material confirms the presence of eutherians on the Indian subcontinent during the Late Cretaceous. A Eurasian connection via an early collision or some other dispersal route may explain these paleobiogeographic data, but other hypotheses are considered. In particular, paleogeographic, paleontological, and molecular systematic data hint that boreosphenidan mammals may have had wider distribution on Gondwana during the Cretaceous than previously supported.

Ograniczanie wyników

1 Acta Palaeontologica Polonica

1 Rana R. S.

1 Wilson G. P.

1 2003

Wyniki wyszukiwania

New Late Cretaceous mammals from the Intertrappean beds of Rangapur, India and paleobiogeographic framework