Troodontidae /troʊ.əˈdɒntɪdiː/ is a clade of bird-like theropod dinosaurs. During most of the 20th century, troodontid fossils were few and incomplete...

years, during which time the family Pachycephalosauridae was known as Troodontidae. In 1945, Charles Mortram Sternberg rejected the possibility that Troodon...

Ornithomimus velox. It contains the major subgroups Avialae, Dromaeosauridae, Troodontidae, Oviraptorosauria, and Therizinosauria. Ornitholestes and the Alvarezsauroidea...

grams (21–25 oz) in mass. In Eumaniraptora, both Dromaeosauridae and Troodontidae went later through four independent events of gigantism, three times...

domesticus). It traditionally includes the families Dromaeosauridae and Troodontidae, which each possess enlarged "sickle claws". However, troodontids may...

that Xiaotingia formed a clade with Archaeopteryx, Dromaeosauridae and Troodontidae to the exclusion of other groups traditionally seen as birds. Xu et al...

the "falchiporan condition". Borogovia was assigned by Osmólska to the Troodontidae in 1987. Dinosaurs portal Timeline of troodontid research Osmólska, H...

scientists classifying them as a distinct family, a basal subfamily of Troodontidae, members of Archaeopterygidae, or an assemblage of dinosaurs that are...

Troodon formosus. Currie also made Saurornithoididae a junior synonym of Troodontidae. In 1988, Gregory S. Paul went farther and included Saurornithoides mongoliensis...

†Jinfengopteryx †Aurornis †Dromaeosauridae †Troodontidae Avialae...

Alvarezsauridae †Family Therizinosauridae †Infradivision Deinonychosauria †Family Troodontidae †Family Dromaeosauridae Class Aves †Suborder Sauropodomorpha †Thecodontosaurus...

Zhang; Songhai Jia & Qiang Ji (2010). "A new troodontid (Theropoda: Troodontidae) from the Late Cretaceous of central China, and the radiation of Asian...

family Saurornithoididae. Since these families were the same but the Troodontidae named first, it carries scientific legitimacy. Many milestones of troodontid...

Anchiornithidae in various phylogenetic positions, including close to Troodontidae or Archaeopterygidae. The results of the phylogenetic analyses by Xu...

group) †Archaeopterygidae (small, winged theropods or primitive birds) †Troodontidae (omnivores; enlarged brain cavities) †Dromaeosauridae ("raptors") †Microraptoria...

Chordata Clade: Dinosauria Clade: Saurischia Clade: Theropoda Family: †Troodontidae Subfamily: †Troodontinae Genus: †Latenivenatrix Type species †Latenivenatrix...

bar. The following cladogram shows the position of Byronosaurus within Troodontidae according to a 2017 analysis by the palaeontologist Caizhi Shen and colleagues:...

subarctometatarsal condition. In 2002 Sinovenator was placed in the Troodontidae. Sinovenator is a basal or "primitive" troodontid, and shares features...

Philip John Currie showed that this concept was a junior synonym of Troodontidae, implying that Saurornithoides were a troodontid too. The cladogram below...

Saurornithoididae, Zanabazar is now thought to be a derived member of Troodontidae. The cladogram below shows the phylogenetic position of Zanabazar among...

Ma, Q.; Xu, X. (2024). "Avialan-like brain morphology in Sinovenator (Troodontidae, Theropoda)". Communications Biology. 7 (1). 168. doi:10.1038/s42003-024-05832-3...

Thomas Holtz found a close relationship between the Ornithomimosauria and Troodontidae, and named this group Bullatosauria. Holtz rejected this hypothesis in...

to the resemblance with this group that is today seen as part of the Troodontidae, and combines their name with a Greek lestes, "thief". The specific name...

colleagues found indicative traits that placed Liaoningvenator within the Troodontidae. These traits included its numerous, small, and closely packed teeth...

Chordata Clade: Dinosauria Clade: Saurischia Clade: Theropoda Family: †Troodontidae Subfamily: †Jinfengopteryginae Genus: †Jinfengopteryx Ji et al., 2005...

some unidentified fossils belonging to Tyrannosauridae, ?Ornithomimus, ?Troodontidae, ?Saurornitholestes langstoni, ?Struthiomimus, Ornithopoda, ?Chasmosaurus...

winged protobirds) †Dromaeosauridae (small to medium-sized theropods) †Troodontidae (small, gracile theropods) Avialae (birds and extinct relatives) †Omnivoropterygidae...

life, possibly in an attack on prey. In 2011 Talos was assigned to the Troodontidae. A cladistic analysis indicated it formed a clade of derived troodontids...

what are now known as pachycephalosaurids were assigned to the family Troodontidae, a misconception which was not corrected until 1945 by Charles M. Sternberg...

Yixianosaurus †Archaeopterygidae Alcmonavis? Archaeopteryx Wellnhoferia Anchiornithidae? †Dromaeosauridae see Dromaeosauridae †Troodontidae see Troodontidae...