of the femoral end. Being larger than the femur, the tibia measures and its proximal articulation is more developed than distally. The right pes is virtually complete, only lacking the distal end of the IV metatarsal. The pedal unguals are dorsoventrally flattened and somewhat sharply-developed. Classification During the description of Aquilops in 2014, an extensive Ceratopsia phylogenetic analysis was conducted. Graciliceratops was found to be a basal neoceratopsian. Below are the results obtained for the Neoceratopsia: Paleoecology Graciliceratops was unearthed from the Sheeregeen Gashoon beds, which are part of the Upper Bayan Shireh. The presence of caliche, fluvial and lacustrine sediments, indicate a semiarid climate with rivers and large lakes around the zone. Fossilized fruits have also been recovered from the upper and lower parts of the formation, suggesting the existence of Angiosperm plants. Magnetostratigraphic and calcite U–Pb analyses indicate that the formation lies within the Cretaceous Long Normal, which was deposited until the end of the Santonian around 95.9 ± 6.0 million to 89.6 ± 4.0 million years ago. It lived alongside other reptiles from the upper part, most notably the large dromaeosaurid Achillobator, the tyrannosauroid Alectrosaurus, therizinosaurs Erlikosaurus and Segnosaurus, the pachycephalosaur Amtocephale; ankylosaurs Talarurus and Tsagantegia, the large sauropod Erketu and the basal hadrosauroid Gobihadros. Additional paleofauna has been recovered, expanding the aquatic biodiversity: Paralligator, Lindholmemys and the shark Hybodus. The discoveries of azhdarchids pterosaurs have been reported from at least two locations, compromising mainly cervical vertebrae. See also Timeline of ceratopsian research Microceratus References Late Cretaceous dinosaurs of Asia Ceratopsians Fossils of Mongolia Fossil taxa described in 1975 Fossil taxa described in 2000 Taxa named by Paul Sereno Ornithischian genera