Azhdarchidae

Azhdarchidae (from the Persian word azhdar, اژدر, a dragon-like creature in Persian mythology) is a family of pterosaurs known primarily from the Late Cretaceous Period, though an isolated vertebra apparently from an azhdarchid is known from the Early Cretaceous as well (late Berriasian age, about 140 million years ago).[1] Azhdarchids included some of the largest known flying animals of all time, but smaller cat-size members have also been found.[2] Originally considered a sub-family of Pteranodontidae, Nesov (1984)[3] named the Azhdarchinae to include the pterosaurs Azhdarcho, Quetzalcoatlus, and Titanopteryx (now known as Arambourgiania). They were among the last known surviving members of the pterosaurs, and were a rather successful group with a worldwide distribution. By the time of the end-Cretaceous mass extinction, most pterosaur families except for the Azhdarchidae disappear from the fossil record, but recent studies indicate a wealth of pterosaurian fauna, including pteranodontids, nyctosaurids, tapejarids and several indeterminate forms.[4] In several analyses, some taxa such as Navajodactylus, Bakonydraco and Montanazhdarcho were moved from Azhdarchidae to other clades.[5][6][7]

Azhdarchids
Temporal range: Cretaceous, 108–66 Ma Possible Early Cretaceous record[1]
Reconstructed skeleton of Quetzalcoatlus northropi
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Order: Pterosauria
Suborder: Pterodactyloidea
Clade: Azhdarchiformes
Family: Azhdarchidae
Nesov, 1984
Type species
Azhdarcho lancicollis
Nesov, 1984
Genera
Synonyms
  • "Titanopterygiidae"
    Padian, 1984 (preoccupied)

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