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Khankhuuluu mongoliensis
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
| Year | Name and author |
|---|---|
| 2025 | Khankhuuluu mongoliensis Voris et al. |
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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
| Reference | Diagnosis | |
|---|---|---|
| J. T. Voris et al. 2025 | Medium-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
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| 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 - Santonian | Mongolia (Dornogov) | Tyrannosauroidea indet. (149977) | |
| Late/Upper Turonian - Late/Upper Santonian | Mongolia (Omnogov) | Alectrosaurus olseni (type locality: 67974) |