File:Protoceratops size.png

DescriptionProtoceratops size.png English: Size comparison between the two species of Protoceratops: P. andrewsi and P. hellenikorhinus. Human for scale

DescriptionProtoceratops ontogeny sizes.png Sequence of silhouettes to illustrate the differing sizes of Protoceratops specimens considered here. Left

DescriptionProtoceratops scale.png English: Size comparison between the derived protoceratopsid ceratopsian Protoceratops (1.8 m long) and the human Andrew

DescriptionProtoceratops andrewsi holotype.png English: Protoceratops andrewsi, type skull, oblique side view. About two-thirds natural size. Date 1 January

DescriptionProtoceratops andrewsi holotype (top).png English: Protoceratops andrewsi, type skull, top view. Two-thirds natural size. Date 1 January 1923