ArticleRoyal Society open science2023
The limestone spheroids of 'Ubeidiya: intentional imposition of symmetric geometry by early hominins?
Article in Royal Society open science, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
5 citing papers in PubMed.
- The Open Aurignacian Project: 3D scanning and the digital preservation of the Italian Paleolithic record.Scientific data · 2025Article
- Late Acheulian stone-working by the riverbank: Patterns of continuity and change reflected in Jaljulia lithic assemblages, Israel.PloS one · 2025Article
- Automatic analysis of the continuous edges of stone tools reveals fundamental handaxe variability.Scientific reports · 2024Article
- The limestone spheroids of 'Ubeidiya: intentional imposition of symmetric geometry by early hominins?Royal Society open science · 2023Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Spheroids are one of the least understood lithic items yet are one of the most enduring, spanning from the Oldowan to the Middle Palaeolithic. Why and how they were made remains highly debated. We seek to address whether spheroids represent unintentional by-products of percussive tasks or if they were intentionally knapped tools with specific manufacturing goals. We apply novel three-dimensional analysis methods, including spherical harmonics and surface curvature, to 150 limestone spheroids from 'Ubeidiya (
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