Fig. 17 in A Small Derived Theropod from Öösh, Early Cretaceous, Baykhangor Mongolia

Fig. 17. Systematic variation in first premaxillary tooth size among coelurosaur theropods. Tsaagan mangas (IGM 100/1015), top, illustrating a first premaxillary tooth similar in size to premaxillary teeth 2 and 3 (character 251.0). Velociraptor mongoliensis (IGM 100/982), middle, illustrating a first premaxillary tooth much smaller than premaxillary teeth 2 and 3 (character 251.1). Incisivosaurus gauthieri (IVPP V13326), bottom, illustrating a first premaxillary tooth much larger than premaxillary teeth 2 and 3 (character 251.2). Images not to scale.