The smallest dinosaur ever discovered is Anchiornis huxleyi, which lived during the Late Jurassic period. It was about the size of a modern-day crow, measuring around 39-46 cm in length.
Anchiornis had feathers and is considered one of the earliest examples of avian dinosaurs. Its discovery provides insight into the early evolution of birds from small theropod dinosaurs.
Pro tip: Understanding dinosaur classifications can help you appreciate the diversity of prehistoric life.