In Paleolithic cave art, geometric signs tend to outnumber figurative images and yet, they remain relatively understudied. To address this gap in our knowledge, I compiled a digital catalogue of all known geometric signs found in parietal art in France, and then trended the results looking for patterns of continuity and change over time and space. I focused on parietal art, as I could be certain of its provenance, and picked France as my region due to its abundance of decorated sites and its natural boundaries of water and mountain ranges. The database is searchable by a variety of criteria such as sign category, method of production, date range, site type, geographical coordinates and region. It is now being converted into an online resource. To provide a visual dimension, it includes a selection of linked photographs and reproductions of the different signs. In this thesis, I detail the chronological and regional patterning in sign type and frequency and the implications of these patterns for understanding where, when and why the making of these signs was meaningful to the Pleistocene peoples who created them.