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Troodontinae

Reptilia - Troodontidae

Synonymy list
YearName and author
2017Troodontinae van der Reest and Currie p. 921
2021Troodontinae Sellés et al. p. 6

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
RankNameAuthor
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Theropoda()
—Neotheropoda
—AverostraPaul 2002
—Tetanurae
—Coelurosauria()
—Maniraptora
—Paraves
infraorderDeinonychosauria
familyTroodontidae
subfamilyTroodontinae
subfamilyTroodontinae

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Subfm. †Troodontinae van der Reest and Currie 2017
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G. †Borogovia Osmolska 1987
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†Borogovia gracilicrus Osmolska 1987
G. †Byronosaurus Norell et al. 2000
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†Byronosaurus jaffei Norell et al. 2000
G. †Hypnovenator Kubota et al. 2024
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†Hypnovenator matsubaraetoheorum Kubota et al. 2024
G. †Latenivenatrix van der Reest and Currie 2017
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†Latenivenatrix mcmasterae van der Reest and Currie 2017
G. †Linhevenator Xu et al. 2011
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†Linhevenator tani Xu et al. 2011
G. †Saurornithoides Osborn 1924
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G. †Sinornithoides Russell and Dong 1994
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†Sinornithoides youngi Russell and Dong 1994
G. †Stenonychosaurus Sternberg 1932
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†Stenonychosaurus inequalis Sternberg 1932
G. †Talos Zanno et al. 2011
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†Talos sampsoni Zanno et al. 2011
G. †Troodon Leidy 1856
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†Troodon formosus Leidy 1856
Invalid names: Polyodontosaurus Gilmore 1932 [synonym]
G. †Urbacodon Averianov and Sues 2007
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†Urbacodon itemirensis Averianov and Sues 2007
†Urbacodon norelli Wang et al. 2024
G. †Zanabazar Norell et al. 2009
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†Zanabazar junior Barsbold 1974
Diagnosis
ReferenceDiagnosis
A. J. van der Reest and P. J. Currie 2017Troodontinae differs from all other more basal troodon- tids by possessing an elongated ambiens process that is present on the anterior margin of the iliopubic symphysis.
Measurements
No measurements are available
Composition: hydroxyapatiteo
Entire body: yeso
Adult length: 10 to < 100o
Adult width: 1.0 to < 10o
Adult height: 1.0 to < 10o
Maximum body mass: 100 kgg
Minimum body mass: 10 kgg
Architecture: compact or denseo
Ontogeny: accretion, modification of partso
Grouping: solitaryo
Environment: terrestrialf
Locomotion: actively mobileo
Life habit: ground dwellingf
Diet: carnivoref
Diet 2: omnivoref
Reproduction: oviparousf
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2005-09-11 17:03:06
Modified: 2005-09-11 19:03:56
Source: g = genus, f = family, o = order
References: Peczkis 1995, Holtz et al. 2000, Marsh 1875

Age range: base of the Aptian to the top of the Lancian or 121.40000 to 66.00000 Ma

Collections (139 total)


Time interval Ma Country or state Original ID and collection number
Valanginian - Albian137.05 - 100.5China (Nei Mongol) Saurornithoides sp. (46934)
Barremian - Aptian125.77 - 113.2Russian Federation (Krasnoyarsk) Urbacodon sp. (206601 206603)
Barremian - Aptian125.77 - 113.2Russian Federation (Kemerovo) Urbacodon sp. (167303)
Aptian121.4 - 113.2Russian Federation (Kemerovo) Urbacodon sp. (39680)
Early/Lower Albian113.2 - 110.1China (Gansu) Sinornithoides sp. (45166)
Early/Lower Albian - Middle Albian113.2 - 106.3Japan (Hyōgo) Hypnovenator matsubaraetoheorum (235979)
Cenomanian100.5 - 93.9Uzbekistan (Navoi) Urbacodon itemirensis (70426)
Early/Lower Cenomanian100.5 - 93.9Uzbekistan (Navoi) Saurornithoides sp. (64685)
Campanian83.6 - 72.2China (Nei Mongol) Linhevenator tani (131828) Saurornithoides mongoliensis (46973)
Campanian83.6 - 72.2Canada (Alberta) Troodon formosus (58808)
Campanian83.6 - 72.2Mongolia (Omnogov) Byronosaurus jaffei (37209) Troodontidae indet. (37211)
Campanian83.6 - 72.2Mongolia (Omnogov Aimak) Saurornithoides mongoliensis (37213)
Late/Upper Campanian83.6 - 72.2Canada (Alberta) Latenivenatrix mcmasterae (46953 229978) Stenonychosaurus inequalis (34745 45753 59115 59131 59137 184041) Troodon formosus (22659 22695 22697 22698 34307 34309 45264 45671 45892 45893 45897 45898 46951 47784 47807 47811 47812 64325 64326 76030) Troodon sp. (22699 45238 45261 45262 67874 67876 67881 67893 67894 89605 238814) Troodon sp., Troodon formosus (53050) Troodon sp., Troodontidae indet. (52991)
Late/Upper Campanian83.6 - 72.2USA (Utah) Troodontidae indet. (131870)
Late/Upper Campanian83.6 - 72.2Mongolia (Omnogov) Dromaeosauridae indet. (45090) Ornithoides oshiensis (46152)
Late/Upper Campanian83.6 - 72.2USA (Montana) Troodon formosus (22689 59373) Troodon sp. (25658)
Middle Campanian83.6 - 72.2USA (Montana) Hypsilophodontidae indet. (13281) Troodon formosus (14437) Troodon formosus, Theropoda indet. (14453) Troodon sp. (53055 53056)
Middle Campanian83.6 - 72.2Canada (Alberta) Saurornithoididae indet. (61470) Troodon formosus (45240 47795 47809) Troodon sp. (47794 67880 67892)
Middle Campanian - Late/Upper Campanian83.6 - 72.2Canada (Alberta) Stenonychosaurus inequalis (179240 179241 179242 179243 179244 179245 179246 217170) Troodon formosus (45821)
Middle Campanian - Late/Upper Campanian83.6 - 72.2China (Inner Mongolia) Urbacodon norelli (235635)
Middle Campanian - Late/Upper Campanian83.6 - 72.2Canada (Saskatchewan) Troodon sp. (14494)
Middle Campanian - Late/Upper Campanian83.6 - 72.2USA (Montana) Troodon formosus (14446 14457 14490 50907 59217 64643 69213) Troodon sp. (14434 14462 60518 223339)
Late/Upper Campanian - Early/Lower Maastrichtian83.6 - 66.0Canada (Alberta) Troodon sp. (34744 52072 144539 152270 152271 152272)
Early/Lower Maastrichtian72.2 - 66.0USA (Alaska) Troodon formosus (51889 51892 51893 88975) Troodon sp. (51890)
Early/Lower Maastrichtian72.2 - 66.0Canada (Alberta) Troodon formosus (64324) Troodon sp. (55363 96455 135739) Troodontidae indet. (76062)
Lancian72.2 - 66.0USA (North Dakota) Troodon sp. (14610)
Lancian72.2 - 66.0USA (South Dakota) Troodon sp., Saurornithoides mongoliensis (14537 192251)
Lancian72.2 - 66.0USA (Montana) Troodon sp. (14516 14521 14568 14582 14650)
Lancian72.2 - 66.0USA (Wyoming) Saurornithoides inequalis (14519) Troodon formosus (14542 14543 75298 75435 75442) Troodon sp. (14566)
Late/Upper Maastrichtian72.2 - 66.0USA (North Dakota) Troodon sp. (45099)
Late/Upper Maastrichtian72.2 - 66.0USA (Montana) Stenonychosaurus inequalis (142326)
Late/Upper Maastrichtian72.2 - 66.0USA (South Dakota) Troodon sp. (224484)
Late/Upper Maastrichtian72.2 - 66.0Russian Federation (Chukot) Troodon sp. (59386)
Late/Upper Maastrichtian72.2 - 66.0Russian Federation (Amur) Troodon sp. (38134 47029)
Late/Upper Maastrichtian72.2 - 66.0USA (Wyoming) Troodon formosus (26760) Troodon sp., Saurornithoides sp. (14585)
Maastrichtian72.2 - 66.0Mongolia (Omnogov) Saurornithoides junior (52012) Saurornithoides sp. (37020 168988)
Maastrichtian72.2 - 66.0China (Heilongjiang) Troodon sp. (37811)