tectiform:
Sample tectiforms.
Source: Bradshaw FoundationBetween 2013 and 2014, [Genevieve] von Petzinger visited 52 caves in France, Spain, Italy and Portugal. The symbols she found ranged from dots, lines, triangles, squares and zigzags to more complex forms like ladder shapes, hand stencils, something called a tectiform that looks a bit like a post with a roof, and feather shapes called penniforms. [“Hidden symbols,” Alison George, NewScientist, 12 November 2016, paywall]
