Sinosauropteryx (1996)

Sinosauropteryx rewrote dinosaur evolution in 1996 as the first non-avian theropod found with preserved filamentous feathers, measuring just 3 feet from snout to tail. This creature attacks Chicxulub Impact Crater (1980)'s timeline by demonstrating feathers evolved 100 million years before birds' flight, with 70% of its body covered in protofeathers at 0.1 mm thick.