Incisivosaurus

Incisivosaurus was a small feathered oviraptorosaur dinosaur from Early Cretaceous China. Its prominent, forward-projecting incisiform teeth distinguish it from other known oviraptorosaurs.

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Oviraptorosauria: A group of feathered theropod dinosaurs that includes oviraptorids and several closely related lineages. Incisivosaurus is an early-diverging member of this dinosaur group.
Incisiform teeth: Teeth shaped like incisors, typically broad or chisel-like and adapted for cutting or nipping. The forward-projecting incisiform teeth are the dinosaur's defining anatomical feature.
IVPP V13326: The holotype fossil specimen on which the species Incisivosaurus gauthieri was based. This specimen preserves the skull whose unusual teeth prompted the genus name.
Xu Xing: A Chinese paleontologist known for describing many feathered dinosaurs from China. Xu Xing and colleagues named Incisivosaurus in their 2002 description.
Theropoda: A major dinosaur group that includes birds and their extinct, mostly bipedal relatives. Its evolutionary ancestry places Incisivosaurus within this broad dinosaur lineage.
Dental occlusion: The way opposing teeth meet when an animal closes its jaws. Tooth wear and jaw contact can constrain hypotheses about how its incisiform teeth worked.
Yixian Formation: An Early Cretaceous geological formation in Liaoning, northeastern China, famous for fossils of the Jehol Biota. The type specimen was recovered from this fossil-bearing formation.
Oviraptorosaur phylogeny: The evolutionary relationships among oviraptorosaurs inferred from comparative anatomy and fossils. Its placement has been used to investigate early branches of the oviraptorosaur family tree.
Feathered dinosaurs: Dinosaurs known to have feathers or feather-like integument, including many theropods. Fossils and its evolutionary position place Incisivosaurus among feathered dinosaurs.
Herbivory: A feeding strategy in which an animal consumes plants or plant material. Its tooth shape has been discussed as possible evidence for plant consumption.