Aralazhdarcho

Aralazhdarcho
Temporal range: Santonian–Campanian
Fragment of a left humerus
Fragment of a left humerus
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Order: Pterosauria
Suborder: Pterodactyloidea
Family: Azhdarchidae
Genus: Aralazhdarcho
Averianov, 2007
Species:
A. bostobensis
Binomial name
Aralazhdarcho bostobensis
Averianov, 2007

Aralazhdarcho is a genus of azhdarchid pterosaur from the Santonian to the early Campanian stages of the Late Cretaceous period of Bostobe Svita in Kazakhstan. The type and only known species is Aralazhdarcho bostobensis.

Etymology

Aralazhdarcho was named in 2007 by Alexander Averianov. In 2004, the holotype had already been described. The genus name, Aralazhdarcho, is derived from the Aral Sea and the related genus Azhdarcho, while the specific name, bostobensis, refers to the Bostobe Formation.

Description

Aralazhdarcho is based on holotype ZIN PH, no. 9/43, consisting of the anterior end of a neck vertebra, probably the fifth or sixth. Several paratypes have also been referred: a jugal, a toothless lower jaw fragment, centra from vertebrae, the distal end of a scapula, the proximal end of a second phalanx of the left wing finger and the proximal end of a left femur, of which, however, the head has broken off. The remains were found at the Shakh-Shakh locality.

Classification

Averianov, the describer, assigned Aralazhdarcho to the family Azhdarchidae, in view of its lack of teeth and geological age. Averianov presumed it presented a more southern form as opposed to the contemporary related genus Bogolubovia that was found in adjoining more northern regions. The cladogram below shows a phylogenetic analysis recovered by Nicholas Longrich and colleagues in 2018. They found Aralazhdarcho as the sister taxon of Phosphatodraco, both within the Azhdarchidae.

Azhdarchidae

Montanazhdarcho

Azhdarcho

Phosphatodraco

Aralazhdarcho

Eurazhdarcho

aff. Quetzalcoatlus

Zhejiangopterus

Arambourgiania

Hatzegopteryx

Quetzalcoatlus

See also


This page was last updated at 2023-07-20 16:27 UTC. Update now. View original page.

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