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Alvarezsauroidea

Reptilia - Avetheropoda

Taxonomy
Alvarezsauroidea was named by Choiniere et al. (2010) [based off Alvarezsauridae Bonaparte 1991]. Its type is Alvarezsaurus.

It was synonymized subjectively with Alvarezsauria by Agnolin et al. (2012).

It was assigned to Maniraptora by Choiniere et al. (2010); and to Coelurosauria by Xu et al. (2011).

Synonymy list
YearName and author
2010Alvarezsauroidea Choiniere et al. pp. 571-573
2011Alvarezsauroidea Xu et al. p. 2338

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Eosuchia()
RankNameAuthor
Neodiapsida
SauriaGauthier 1984
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Saurischia()
Theropoda()
Neotheropoda
AverostraPaul 2002
Tetanurae
orderAvetheropoda
suborderCoelurosauria
Maniraptora
superfamilyAlvarezsauroidea
superfamilyAlvarezsauroidea

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.

Diagnosis
No diagnoses are available
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
Architecture: compact or denseo
Ontogeny: accretion, modification of partso
Grouping: solitaryo
Environment: terrestrialo
Locomotion: actively mobileo
Life habit: ground dwellingo
Diet: carnivoresubo
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2009-01-03 20:39:15
Modified: 2009-01-03 22:39:15
Source: subo = suborder, o = order
References: Kiessling 2004, Benton 1983, Marsh 1875

Age range: base of the Santonian to the top of the Lancian or 86.30000 to 66.00000 Ma

Collections (16 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Coniacian - Santonian89.3 - 83.6China (Henan) Xixianykus zhangi (94887)
Santonian86.3 - 83.6Mongolia (Dornogov) Albinykus baatar (80183)
Campanian83.6 - 72.1China (Linhe) Linhenykus monodactylus (145095)
Campanian83.6 - 72.1Mongolia (Omnogov Aimak) Mononykus olecranus (37184)
Campanian83.6 - 72.1Mongolia (Omnogov) Mononykus sp. (129749)
Campanian83.6 - 72.1China (Nei Mongol) Linhenykus monodactylus (131829)
Campanian83.6 - 72.1Mongolia (Omngov) Mononykus sp. (68525)
Late/Upper Campanian83.5 - 70.6Mongolia (Omnogov) Mononychus olecranus (51033)
Middle Campanian83.5 - 70.6Mongolia (Omnogov) Ceratonykus oculatus (88549)
Middle Campanian - Late/Upper Campanian83.5 - 70.6Mongolia (Omnogov) Parvicursor remotus (27009)
Late/Upper Campanian - Early/Lower Maastrichtian83.5 - 66.0Mongolia (Omnogov) Mononykus sp. (168983)
Maastrichtian72.1 - 66.0Mongolia (Omnogov) Mononychus olecranus (69801) Mononykus olecranus (13108) Mononykus sp. (55257)
Early/Lower Maastrichtian70.6 - 66.0Canada (Alberta) Albertonykus borealis (55363)
Lancian70.6 - 66.0USA (Montana) Mononykinae indet. (14616)