Pterosaurs, successful flying reptiles, not strictly dinosaurs, Mesozoic, 228 - 66mya

You will need two skeins of yarn in contrasting colours, my square weighs 55 grams.

The pattern is 47sts by 58 rows done in double knitting, and comes out at 10 inches square on 4mm needles.

You could use thicker yarn and larger needles for a larger square if you wish.