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Comentario sobre "Un cráneo completo de Dmanisi, Georgia, y la biología evolutiva del Homo primitivo"

Jeffrey H Schwartz¹, Ian Tattersall, Zhang Chi

¹Department of Anthropology, University of Pittsburgh, Pittsburgh, PA 15260, USA.

Science (New York, N.Y.)

|April 26, 2014

Resumen

Los fósiles de homínidos de Dmanisi representan una única variante de Homo erectus, de acuerdo con el análisis morfológico de la forma. Sin embargo, las características dentales, mandibulares y craneales detalladas sugieren una diversidad significativa, que apoya la clasificación de Homo georgicus.

Área de la Ciencia:

La paleoantropología es la paleoantropología.
Estudios de la Evolución Humana Estudios de la Evolución Humana

Sus antecedentes:

El yacimiento de Dmanisi en Georgia ha arrojado importantes restos fósiles de homínidos.
Investigaciones anteriores han debatido la clasificación taxonómica de estos fósiles.

Objetivo del estudio:

Para analizar la diversidad taxonómica de los cinco cráneos de homínidos de Dmanisi.
Para reevaluar la clasificación de estos fósiles dentro del género Homo.

Principales métodos:

Comparaciones morfológicas brutas del cráneo del homínido.
Análisis geométrico-morfométrico de la forma general del cráneo.
Examen detallado de las morfologías dentales, mandibulares y craneales.

Principales resultados:

La morfología bruta y el análisis general de la forma sugieren que los fósiles representan una única variante regional del Homo erectus.
Las características específicas dentales, mandibulares y craneales indican una significativa diversidad táxica entre los especímenes.
La diversidad observada apoya el reconocimiento del Homo georgicus como un taxón distinto.

Conclusiones:

La muestra de homínidos de Dmanisi exhibe una considerable variación morfológica.
La evidencia apoya la distinción de Homo georgicus, lo que desafía la hipótesis de la única variante de Homo erectus.

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