Remi Chauveau Notes
The 773,000‑year‑old Casablanca fossils reveal that early Homo populations were established in North Africa far earlier than believed, positioning the Maghreb as a major evolutionary crossroads in the deep history of our species.
Science 🧬

Casablanca Fossils Reveal African Ancestors of Homo sapiens

7 January 2026
@zekedarwinscience New ancient human fossils from Morocco are filling in a gap in the evolution of our species #learnontiktok #evolution #archaeology #sapiens #history ♬ original sound - Zeke Darwin

🌍 Zina at the Dawn of Humanity

In the same way the Casablanca fossils push our origins deeper into North Africa’s deep time, Zina by Babylone becomes a modern echo of that ancient story — a voice calling across millennia, searching for what was lost, just as early humans once vanished into deserts, coastlines, and horizons. The band’s very name, Babylone, evokes a crossroads of civilizations, a reminder that this region has always been a crossroads where peoples, cultures, and emotions intertwined. Linking the song’s longing to the fossils’ revelation creates a single narrative thread: from prehistoric ancestors to contemporary melodies, North Africa keeps revealing our shared humanity — a lineage of wanderers, lovers, and seekers under the same sky.

🎶 🦴🌍⛏️🧬📡🪨🌞🌬️🏞️🔍🧭💡 Zina - Babylone



The latest discoveries from the Casablanca region are reshaping our understanding of early human evolution. Fossils excavated from the Grotte à Hominidés at Thomas Quarry I — precisely dated to around 773,000 years using high‑resolution magnetostratigraphy — reveal that early Homo populations were established in North Africa far earlier than previously confirmed.

These remains, analyzed through CT‑scanning, sedimentology, and paleomagnetic signatures, display a mosaic of traits that place them close to the root of the Homo sapiens lineage. Far from being a peripheral zone, the Maghreb emerges as a dynamic evolutionary crossroads where ancient populations moved, mixed, and adapted across shifting Pleistocene landscapes. This discovery fills a major gap in the African fossil record and reframes the continent as a network of interconnected evolutionary centers rather than a single cradle.

🦴 Dating the Fossils

The fossils from Thomas Quarry I provide one of the most precisely dated hominin assemblages in North Africa. Researchers used magnetostratigraphy, tied to the Matuyama–Brunhes reversal, to establish a date of 773,000 ± 4,000 years. This anchors the remains within a critical evolutionary window between one million and 600,000 years ago. The assemblage includes adult mandibles, a child’s jaw, isolated teeth, vertebrae, and a femur, all preserved within sediments shaped by fluctuating sea levels. These findings extend the known presence of early Homo in the Maghreb and challenge long‑held assumptions that North Africa was marginal to early human evolution.

🧬 What the Bones Reveal

Detailed CT‑scan analyses show a population with a mix of archaic and modern traits. The mandibles are gracile and lack a chin, while the dental morphology trends toward features later seen in early Homo sapiens and Neanderthals. Cranial characteristics still echo Homo erectus, suggesting a transitional population close to the last common ancestor of Homo sapiens, Neanderthals, and Denisovans. Importantly, these fossils do not match the European species Homo antecessor, indicating that Africa hosted its own evolutionary trajectories rather than simply receiving influences from Eurasia.

đź§Ş The Research Teams

These discoveries result from more than three decades of collaboration within the program Préhistoire de Casablanca. The project brings together specialists in paleoanthropology, geology, archaeology, and paleomagnetism. Key contributors include Jean‑Jacques Hublin, David Lefèvre, Giovanni Muttoni, and Abderrahim Mohib, supported by institutions such as the INSAP, the Collège de France, and the Max Planck Institute for Evolutionary Anthropology. Their interdisciplinary approach — combining stratigraphic mapping, micromorphology, CT‑scanning, and paleomagnetic analysis — allowed the team to extract new meaning from fossils first identified in 1969.

🌊 The Cave Environment

The Grotte à Hominidés preserves a complex geological history. Its sediments include marine sands, shoreline deposits, and continental layers shaped by repeated Pleistocene sea‑level oscillations. Taphonomic evidence shows that the cave functioned as a hyena den, with bite marks on the human femur and mixed faunal remains. Acheulean stone tools found in the same layers indicate that hominins occupied or passed through the area before carnivores dragged remains inside. This interplay of geological and biological processes is essential for understanding how the fossils were preserved and why their dating is so robust.

🌍 Why It Matters

The Casablanca fossils reinforce a model in which early humans formed interconnected populations across Africa, moving through ecological corridors that opened during humid phases of the Sahara. Instead of a single birthplace, the continent appears as a network of evolutionary zones, each contributing traits, genes, and innovations to the emerging Homo sapiens lineage. North Africa, long treated as peripheral, now stands as a major evolutionary hub, a region where early humans were already experimenting with the anatomical features that would define our species. These discoveries deepen our understanding of human origins and highlight the Maghreb’s central role in the story of our shared ancestry.

#HumanOrigins 🦴 #AfricaEvolution 🌍 #HomoSapiens 🧬 #PaleoDiscovery ⛏️ #CasablancaFossils 📍

773,000‑year‑old Casablanca fossils

The Maghreb Population Persistence Model
Early excavations at Thomas Quarry I revealed something most articles never mention: the Casablanca fossils point to long‑term population stability in North Africa, not just brief waves of occupation. The sediment layers show that early human groups kept returning to — and likely living in — the same coastal ecological niche for hundreds of thousands of years, even as sea levels rose and fell. This persistence suggests that the Atlantic Maghreb was not a marginal passageway but a reliable homeland where resources, climate, and geography supported continuous human presence. It also hints at deep cultural and ecological continuity, making the region one of the earliest stable population nodes in the story of our species.

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