Open Paleo

Dzharaonyx

Averianov & Sues, 2022 JAH-ruh-ON-iks

From Dzharakuduk (the type locality in the Kyzylkum Desert of Uzbekistan) + Greek onyx (claw): 'Dzharakuduk claw'.

93.9–89.8 million years ago Turonian, Late Cretaceous
Late Cretaceous stages

Dzharaonyx is a genus of alvarezsaurid theropod from the Late Cretaceous Bissekty Formation of Uzbekistan. The type and only species is D. eski. The specific epithet "eski" is an Uzbek word for "old".

Diagnosis

  1. Posterior dorsal vertebrae opisthocoelous, without infrapostzygapophyseal fossae
  2. Posterior caudal vertebrae procoelous, with longitudinal canal within the neural arch
  3. Humerus with small internal tuberosity, similar-sized radial and ulnar condyles, and distally protruding radial condyle
  4. Manual phalanx II-1 with similarly developed flexor ridges and lacking dorsolateral process
  5. Pedal phalanx IV-1 with protruding proximomedial process, proximoventral notch, and asymmetrical distal condyles
  6. Pubis bears a preacetabular tubercle; metatarsal II with posterolateral flange; pedal ungual phalanges with small flexor tubercles

Species

Dzharaonyx eski Averianov & Sues, 2022

Type species

From Uzbek 'eski' meaning 'old'.

Holotype
ZIN PH 2619/16 , Zoological Institute, Russian Academy of Sciences
Material
Right humerus
Horizon
Bissekty Formation, Turonian, Late Cretaceous , 93.9–89.8 million years ago
Locality
Dzharakuduk, Navoiy, Uzbekistan

References

  1. Averianov, A. O.; Sues, H. D. (2022). New material and diagnosis of a new taxon of alvarezsaurid (Dinosauria, Theropoda) from the Upper Cretaceous Bissekty Formation of Uzbekistan. Journal of Vertebrate Paleontology 41(5): e2036174. Informa UK Limited. doi:10.1080/02724634.2021.2036174 averianov2022b