Proteus is a prototype human (beta release) living in Gondwanaland in the Jurassic era. Part one is here.
As it happened, Proteus could not speak with sounds:
when he opened his mouth and set his throat to vibrate,
glowing bubbles, leafy baubles, necklaced seeds,
a myriad of elemental protozoan shapes,
floated from his lips, sparking, drifting through the trees.