Unfortunately for Carnotaurus:
Carnotaurus was further characterized by small, vestigialforelimbs and long, slender hind limbs. The skeleton is preserved with extensive skin impressions, showing a mosaic of small, non-overlapping scales approximately 5 mm in diameter. The mosaic was interrupted by large bumps that lined the sides of the animal, and there are no hints of feathers.
Scalation was similar across different body parts with the exception of the head, which apparently showed a different, irregular pattern of scales.[AL][15]There is no evidence of feathers.[7] Larger bump-like structures were distributed over the sides of the neck, back and tail in irregular rows.
I also just want to say, I only found this when I went looking to find what kind of feather patterns they might’ve had lol