zentangle dimetrodon dinosaur

adult ancient animal anti antistress archeology art artwork beast black body book carnivore cartoon claws coloring contour crawling crest cretaceous design dimetrodon dino dinosaur doodle drawing era extinct eyes fauna fossil freehand head hunting illustration jaw jurassic life line monochrome monster nature ornament outline page period permian predator prehistoric relax reptile reptilian spines stress style stylized tail tangle totem triassic tribal vector white wild wildlife zen zentangle zoology