Thread:Disgustedorite/@comment-24941009-20180623080430/@comment-25175729-20180623123137

No, because the criteria for the family is that they are mainly scaley and have venom glands in their necks and four fingered hands. Troodontids have three fingers and are non-venomous and completely covered in feathers.

Zexakids are a family that began as four-limbed but the successful derived forms ended up with a single arm due to mutations piling up.

By the way, it was agreed that Sairostega is not to be set as a type species.