Replica of the Australopithecus sediba skull (MH1)
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Description — what it is made of, how it was created: 3D-printed from durable plastic (PETG/ABS) based on a detailed digital reconstruction of the MH1 skull (the holotype of the species). The digital model was created from high-resolution synchrotron microtomography data of the original specimen, which made it possible to reconstruct the internal structure and morphology without damaging the fossil. Hand-painted to accurately reproduce the color and texture of the fossil material, including all characteristic features of the bone relief. Size: Full-size replica, life-size: ~150 mm (length) × 120 mm (width) × 115 mm (height) — skull of a juvenile individual (adolescent). Jaw: The lower jaw is detachable for detailed study. Significance in anthropology: Dating: ~1.98 million years ago. Found: 2008, Malapa (South Africa). Importance: One of the most complete and well-preserved skulls of an early hominin, belonging to a juvenile individual (only the second molars had erupted). Brain volume: ~420 cm³ — only slightly larger than that of a chimpanzee. Combines primitive australopithecine features with a number of advanced traits bringing it closer to the genus Homo, which makes it key to understanding the transition from australopithecines to humans. Features: Mixed traits: Small brain volume (like a chimpanzee), but the shape of the frontal lobes shows initial reorganization anticipating the human condition. Relatively small teeth and less pronounced cheekbones compared with other australopithecines. The cranial vault is expanded transversely, with vertically oriented parietal walls. Key traits: The face has a "derived" morphology: a weakly projecting upper jaw, a formed nasal region, and cheekbones without strong lateral flaring. The skull belongs to an adolescent, which is important to consider when assessing its taxonomic position: some "Homo-like" features may be related to its juvenile status. Evolutionary significance: Considered a possible candidate for the ancestral form of the genus Homo, or as a closely related sister group. Demonstrates the mosaic nature of evolution: advanced features of the pelvis and hand combine with a small brain, which contradicts the model of gradual brain enlargement before the transition to Homo. The skull morphology points to a possible link with the older Australopithecus africanus. Applications: Study of morphological variability and the taxonomic status of A. sediba. Comparative analysis with other australopithecines and early Homo. Teaching aid on anthropogenesis and hominin skull evolution. Collecting.