1.4‑million‑year‑old African lake footprints differ from known hominins

A team of paleoanthropologists has uncovered a set of eight fossilized footprints preserved in a shallow mudflat that date to more than 1.4 million years ago. The prints, discovered at a well‑studied East African site, were recorded using high‑resolution 3D laser scanning and subsequently analyzed for stride length, foot width, and arch morphology. Radiometric dating of the surrounding volcanic ash layers places the footprints firmly within the early Pleistocene, a period previously dominated by evidence of Paranthropus boisei and Homo erectus in the region.

Morphometric comparison indicates that the foot dimensions and gait patterns of the mudflat walkers differ markedly from those attributed to either P. boisei or H. erectus, suggesting the presence of an additional hominin lineage or a previously unrecognized variation within known species. Researchers caution that the limited sample size precludes definitive taxonomic assignment, but the find expands the behavioral record of early hominins and underscores the complexity of human evolution during the early Pleistocene. Further excavation and analysis are planned to clarify the identity of the track‑makers and to assess their ecological context.