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Un mamífero con cascos del Cretácico de la India
G V R Prasad1, O Verma, A Sahni
1Department of Geology, University of Jammu, Jammu 180 006, India. guntupalli.vrprasad@gmail.com
Science (New York, N.Y.)
|November 10, 2007
Resumen
Un nuevo fósil de ungulado arcaico, Kharmerungulatum vanvaleni, fue hallado en la India.
Área de la Ciencia:
- Paleontología Paleontología.
- Paleontología de los vertebrados.
- La paleogeografía india es la paleogeografía india.
Sus antecedentes:
- La deriva hacia el norte de la India proporciona un contexto geológico único para estudiar la evolución de los mamíferos.
- Comprender la dispersión y diversificación de los mamíferos es crucial para las reconstrucciones paleobiogeográficas.
Objetivo del estudio:
- Para informar sobre el descubrimiento de un ungulado arcaico definitivo del Cretácico Tardío de la India.
- Investigar las implicaciones de este hallazgo para los orígenes y la diversificación de los ungulados tempranos.
Principales métodos:
- Análisis estratigráfico de las secuencias volcánico-sedimentarias de Deccan.
- Identificación paleontológica y descripción de restos fósiles.
- Análisis paleobiogeográfico de la distribución temprana de los ungulados.
Principales resultados:
- Descubrimiento de Kharmerungulatum vanvaleni, un nuevo género y especie de ungulado arcaico.
- Definitiva edad del Cretácico Tardío (Maastrichtiano) para el fósil.
- Fósil recuperado de secuencias volcánico-sedimentarias cerca de la aldea Kisalpuri, en la India central.
Conclusiones:
- El descubrimiento desafía las hipótesis existentes sobre la distribución temprana de los ungulados.
- Plantea tres posibles escenarios paleobiogeográficos: distribución cosmopolita, inmigración de Asia occidental o origen indio.
- Destaca la importancia del subcontinente indio en la evolución temprana de los mamíferos.
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