a short one above its mouth and two long ones above each eye. Behind these horns was a head frill made of bone and studded with small spikes called epoccipitals.

that's so metal. The steel sculpture from Metalbird depicts a pūteketeke flaunting its signature mullet and cheek frills. The metal bird measures 14.5 inches high by 14 inches wide, weighs about ...

It has the largest frill horns ever seen on a horned dinosaur ... Sertich likened dinosaur horns to feathers on birds. Birds use feather colors and patterns to differentiate their own species ...