Troodontidae /troʊ.əˈdɒntɪdiː/ is a clade of bird-like theropod dinosaurs from the Late Jurassic to Late Cretaceous. During most of the 20th century, troodontid...

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

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

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

Chordata Clade: Dinosauria Clade: Saurischia Clade: Theropoda Family: †Troodontidae Subfamily: †Troodontinae Genus: †Hypnovenator Kubota, Kobayashi & Ikeda...

Chordata Clade: Dinosauria Clade: Saurischia Clade: Theropoda Family: †Troodontidae Genus: †Harenadraco Lee et al., 2024 Species: †H. prima Binomial name...

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

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

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

Urbacodon resembles Byronosaurus and Mei but differs from most other Troodontidae in that its teeth lack serrations. Urbacodon is distinguished from Byronosaurus...

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...

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

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

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

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

Pectinodon. While Pectinodon is only known from teeth, its larger family Troodontidae is known from much more complete specimens. They were small, bird-like...

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

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

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

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...

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

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

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

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...

Chordata Clade: Dinosauria Clade: Saurischia Clade: Theropoda Family: †Troodontidae Genus: †Albertavenator Evans et al., 2017 Type species †Albertavenator...

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

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

Rui; Zhang, Qiyue; Tan, Lin (2024-07-17). "A new Urbacodon (Theropoda, Troodontidae) from the Upper Cretaceous Iren Dabasu Formation, China: Implications...

Hypsilophodontidae 8% Ornithomimidae 5% Ankylosauridae 1% Pachycephalosauridae 1% Troodontidae 1% (represented only by teeth) Dromaeosauridae 1% (represented only by...