Troodontinae

Troodontinae is a subfamily of troodontid dinosaurs. The subfamily was first used in 2017 for the group of troodontids descended from the last common ancestor of Gobivenator mongoliensis and Zanabazar junior, but has been redefined to be the least inclusive clade containing Saurornithoides mongoliensis and Troodon formosus, utilizing the type species of the clade.[2][1][3]

Troodontines Temporal range: Late Cretaceous, 95–66 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Life reconstruction of Zanabazar junior
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Clade:	Saurischia
Clade:	Theropoda
Family:	†Troodontidae
Subfamily:	†Troodontinae Gilmore, 1924 vide Martyniuk, 2012
Genera
†Borogovia †Byronosaurus?[1] †Gobivenator †Latenivenatrix †Linhevenator †Pectinodon †Philovenator †Saurornithoides †Stenonychosaurus †Troodon †Urbacodon †Zanabazar

Classification

Below is a cladogram of the Troodontinae as published by Aaron van der Reest and Phil Currie, in 2017.[2]

Troodontidae	Sinovenator       Anchiornis       Mei     Talos       Byronosaurus       MPC-D 100/44     Sinornithoides   Troodontinae     Urbacodon     Gobivenator           Latenivenatrix       Philovenator     Linhevenator           Two Medicine troodontid       Saurornithoides     Zanabazar

References

1. Lefèvre, U.; Cau, A.; Cincotta, A.; Hu, D.; Chinsamy, A.; Escuillié, F.; Godefroit, P. (2017). "A new Jurassic theropod from China documents a transitional step in the macrostructure of feathers". The Science of Nature. 104 (74): 74. doi:10.1007/s00114-017-1496-y. PMID 28831510.
2. van der Reest, A.J.; Currie, P.J. (2017). "Troodontids (Theropoda) from the Dinosaur Park Formation, Alberta, with a description of a unique new taxon: implications for deinonychosaur diversity in North America". Canadian Journal of Earth Sciences. 54 (9): 919–935. doi:10.1139/cjes-2017-0031. hdl:1807/78296.
3. Hartman, Scott; Mortimer, Mickey; Wahl, William R.; Lomax, Dean R.; Lippincott, Jessica; Lovelace, David M. (2019-07-10). "A new paravian dinosaur from the Late Jurassic of North America supports a late acquisition of avian flight". PeerJ. 7: e7247. doi:10.7717/peerj.7247. ISSN 2167-8359.