Protoceratops Building a Sandcastle Coloring Page A playful Protoceratops builds a sandcastle with a pail and shovel in the warm sand. The castle towers, frill and beak make a fun mix of shapes. Try sandy yellows and a bright pail. Color online Download PDF Print Ages5–8 DifficultyMedium FormatPDF · US Letter (fits A4) PriceFree for home & class