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El primer cráneo y otros nuevos descubrimientos de Australopithecus afarensis en Hadar, Etiopía
W H Kimbel1, D C Johanson, Y Rak
1Institute of Human Origins, Berkeley, California 94709.
Nature
|March 31, 1994
Resumen
Nuevos fósiles de Etiopía.
Área de la Ciencia:
- Paleoantropología y biología evolutiva.
Sus antecedentes:
- La Formación Hadar en Etiopía es un sitio fósil clave del Plioceno.
- Australopithecus afarensis es una importante especie de homínido temprano.
Objetivo del estudio:
- Para analizar nuevos especímenes de homínidos de la Formación Hadar.
- Para abordar los debates sobre la variación taxonómica y la locomoción en los primeros homínidos.
Principales métodos:
- Excavación de campo y recolección de muestras en la Formación Hadar.
- Análisis comparativo de fósiles de homínidos nuevos y existentes.
Principales resultados:
- Se descubrieron 53 nuevos especímenes de homínidos, incluido un cráneo adulto.
- Los especímenes tienen entre 3,0 y 3,4 millones de años.
- La evidencia apoya la unidad taxonómica de Australopithecus afarensis.
Conclusiones:
- Los nuevos hallazgos confirman la unidad taxonómica de Australopithecus afarensis.
- Esta colección proporciona evidencia sustancial para el estancamiento evolutivo en los primeros homínidos durante más de 0,9 millones de años.
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