Alanqa
Alanqa is a genus of alanqid pterosaur from the Late Cretaceous period of what is now the Kem Kem Group of southeastern Morocco. The name Alanqa comes from the Arabic word العنقاء al-'Anqā'
Discovery
Aided by local villagers, a team of paleontologists had been excavating at several locations in the Kem Kem Beds during April, and November to December 2008, uncovering remains of several different pterosaurs. The material was fragmentary, and the type locality for Alanqa is Aferdou N'Chaft, near the village of Begaa and to the north-east of Taouz.Description
Alanqa is known only from five fragments of the front upper and lower jaws, and possibly a neck vertebra, representing the single type species Alanqa saharica. Two of these fragments were first described, but not named, by Wellnhofer and Buffetaut in 1999, and referred to a pteranodontid. Three additional jaw specimens, including a better preserved upper jaw, were described and named by Ibrahim and colleagues in 2010. The jaws were straight and pointed, like those of the azhdarchids Quetzalcoatlus and Zhejiangopterus. Based on comparison to related species, the Alanqa saharica individuals known from jaw specimens probably had wingspans of about 4 meters. However, according to Ibrahim and colleagues, the vertebra appeared to come from a larger individual, measuring about 6 meters in wingspan. An individual of such size would have weighed.A rostrum fragment was described in 2015 and referred to cf. Alanqa based on provenance. This fragment has two bony protuberances where the jaw occludes, coinciding with an eminence on one of the mandibles originally referred to Alanqa. These imply an unusual functional specialization in this pterosaur; possible functions include visual display, anchoring of soft tissue, and crushing hard-shelled food.
Classification
In its initial description, Alanqa was referred to the Azhdarchidae, based on the similarity of its jaws to those of Quetzalcoatlus and Zhejiangopterus. This result was reproduced by a subsequent analysis. Another analysis, this time by Nicholas Longrich and colleagues in 2018, recovered Alanqa as a thalassodromid, sister taxon to Aerotitan. However, this concept is not well-supported. The cladogram of their analysis is shown below:A 2022 study by Rodrigo Pêgas and colleagues showed dissimilarities between Aerotitan and Alanqa, as well as other thalassodromines. The former was recovered as an azhdarchid, while Alanqa was recovered as a basal azhdarchoid related to Keresdrakon, both forming the new clade Alanqidae.