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Discovery of Fossils Dating Back 773,000 Years in the Hominid Cave in Casablanca, Morocco, Adds Evidence to the Debate About the African Origin of Homo Sapiens, Reveals Regional Differentiation Between Africa and Europe in the Lower Pleistocene, and Repositions the Maghreb as a Key Area for Human Evolution.
The find of hominid fossils around 773,000 years old in the Hominid Cave at Thomas I Quarry in Casablanca, Morocco, provides new evidence regarding the ancestry of Homo sapiens, with a direct impact on the debate about the African origin of modern human lineages.
Discovery in Casablanca and the Geological Context
The fossils were identified in the Hominid Cave, located at Thomas I Quarry in Casablanca, Morocco. The assemblage includes partial jaws, teeth, vertebrae, and a fragment of a femur, all associated with sediments dated to approximately 773,000 years.
The analysis of the sediments indicates that the remains correspond to a period close to a significant change in the Earth’s magnetic field. This geological marker gives the Moroccan fossils an age comparable to that of Homo antecessor found in Atapuerca, Spain.
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Debate on the Common Ancestor of Human Lineages
Paleoanthropologists have been discussing for decades where the last common ancestor of modern humans, Neanderthals, and Denisovans lived. Genetic evidence suggests that this ancestor existed between approximately 765,000 and 550,000 years ago, but the fossil record remains uncertain.
Part of the scientific community has advocated for a Eurasian origin, based on fossils aged between 950,000 and 770,000 years found in Atapuerca. However, the new findings in North Africa strengthen the hypothesis that the African continent already housed populations close to this ancestral lineage.
Morphological Differences and Regional Differentiation
Although they are of similar age to Homo antecessor, the Moroccan fossils exhibit significant morphological differences. These variations suggest that regional differentiation between Europe and North Africa was already underway by the end of the Lower Pleistocene, a period spanning from 1.8 million to 780,000 years ago.
The remains combine primitive features observed in species such as Homo erectus with more derived traits associated with Homo sapiens and Neanderthals. This combination reinforces the evolutionary complexity of human populations during this time frame.
Anatomical Characteristics of the Moroccan Fossils
The size patterns of the molars found in the fossils resemble those observed in early Homo sapiens and Neanderthals. The jaw shape is closer to that of Homo erectus and other archaic African humans, indicating an intermediate morphology.
According to researchers, the fossils from Morocco may not represent the last common ancestor of modern human lineages, Neanderthals, and Denisovans.
Nevertheless, they are interpreted as close ancestors, situated near the evolutionary split between African and Eurasian populations, reinforcing the role of North Africa.
Implications for the African Origin of Homo sapiens
For the team responsible for the study, the remains likely represent an evolved form of Homo erectus in North Africa. This population would be positioned close to the division between African and Eurasian lineages, offering new clues about the emergence of Homo sapiens.
The results highlight the Maghreb region as a fundamental area for understanding human evolutionary history. The study reinforces the hypothesis of an African, rather than Eurasian, ancestry of Homo sapiens, broadening the understanding of the diversity and dispersal of early hominids, with direct fossil evidence.
The study’s findings were published in the journal Nature.
Nunca existiram os hominídeos. Deus já nos criou racionais como somos. Leia na Bíblia , Gênesis capítulo 1 para comprovar.
Se nota que hace falta un editor, pero uno serio, no como aquellos que solo escriben artículos y se colocan el título de editor digital o editor senior
Cómo es posible que nadie se haya molestado en revisar este artículo? Cómo se puede poner, tanto en el titular, como en el pie de fotografía como en el encabezado, que los fósiles tienen 773 años? Da igual 8 que 80? Son lo fósiles de la Alta Edad Media acaso? Por favor, un mínimo de rigor!