Click Here to Read: Prehistoric Caves May Contain Oldest Paintings of Volcanic Eruptions by Claire Voon on the HyperAllergic Blog on January 25, 2016.
L: General view of the Megaloceros panel showing the spray signs (photo credit D. Genty); R: Detail of the Megaloceros panel (photos V. Feruglio-D. Baffier) (all images © 2016 Nomade et al, used under CC BY 4.0)