How many weird dinosaurs were there?

I know of three off the top of my head. Citipati was a small feathered dinosaur with a beak and headcrest. Incisivosaurus was a feathered dinosaur that appeared to be bucktoothed. Microraptor was a small feathered dinosaur that lived in the trees, and had feathers on both its arms and legs that were used as "wings" for gliding.