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Khankhuuluu mongoliensis

Osteichthyes

Taxonomy
Khankhuuluu mongoliensis was named by Voris et al. (2025). Its type specimen is MPC-D 100/50, a partial skeleton (an associated skeleton including the fused nasal, partial left lacrimal, partial left and right quadrate, vomer, jugal processes of left and right ectopterygoid), and it is a 3D body fossil. Its type locality is Bayshin-Tsav [SMPE] (PIN coll. 100), which is in a Turonian/Santonian terrestrial horizon in the Baynshire Formation of Mongolia. It is the type species of Khankhuuluu.

Synonymy list
YearName and author
2025Khankhuuluu mongoliensis Voris et al.

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

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.

Khankhuuluu mongoliensis Voris et al. 2025
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Diagnosis
ReferenceDiagnosis
J. T. Voris et al. 2025Medium-sized tyrannosauroid diagnosed by the following autapomorphies: a shallow, rugose midline ridge on the nasal that extends along most of the length of the vaulted region of bone; a small nasal pneumatic recess at the anterior end of the lacrimal–nasal contact; a nasal with supernumerary processes for frontal contact but lacking the medial frontal process; the medial margin of dorsal contact surface between quadratojugal and quadrate is situated lateral to the medial edge of the quadrate foramen; the quadrate lacks a wall medial to the quadrate pneumatic recess; the quadrate pneumatic recess does not reach the quadrate head; a deep subacromial depression on the lateral surface of the scapula; the subglenoid fossa of the coracoid is subdivided into two fossae, a lateral fossa and ventral fossa, separated by a ventrolateral ridge. Differs from Alectrosaurus in that metatarsal III lacks the hyperextension of the plantar distal articular surface; differs from Timurlengia in having dorsal vertebrae with tall neural spines; and differs from Xiongguanlong in that the quadratojugal exhibits an anteriorly expanded dorsal process.
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 Late/Upper Turonian to the top of the Santonian or 93.90000 to 83.60000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Cenomanian - Santonian100.5 - 83.6Mongolia (Dornogov) Tyrannosauroidea indet. (149977)
Late/Upper Turonian - Late/Upper Santonian93.9 - 83.6Mongolia (Omnogov) Alectrosaurus olseni (type locality: 67974)