Named By: Fernando Emilio Novas, Martin Kundrat, Federico Agnolína, Martín Ezcurra, Per Erik Ahlberg, Marcelo Isasi, Alberto Arriagada & Pablo Chafrat - 2012.
Classification: Chordata, Reptilia, Pterosauria, Pterodactyloidea, Azhdarchidae.
Species: A. sudamericanus (type).
Diet: Uncertain, but either a carnivore or piscivore.
Size: Uncertain due to lack of remains, but comparison of the holotype fossil to other similar genera has yielded an estimated wingspan of at least 5 meters.
Known locations: Argentina, Rio Negro Province - Allen Formation.
Time period: Campanian of the Cretaceous.
Fossil representation: Partial jaw bones.
named from very little fossil remains, Aerotitan
is thought to be one
of the azdarchid pterosaurs,
and if correct, this would make
Aerotitan the first known confirmed azdarchid
pterosaur from South
America. The azdarchid pterosaurs are a special group noted for
having proportionately long necks supported by lengthened cervical
(neck) vertebrae. Some of these such as Quetzalcoatlus
grew to truly gigantic sizes, but uncertainty has
shrouded what they ate. Studies of azdarchids show that they would
have been most comfortable while feeding on the ground since the long
neck provided little support for the head against water resistance
while feeding upon the wing. Popular thinking about azdarchids at the
time of writing envisions them as living more like storks, sitting on
the edge of a body of water and snatching fish from the shallows, or
even stalking small vertebrates like lizards and mammals through dense
but low growing vegetation.
Aerotitan was first described from fossils that were thought to represent the rostrum, a part of the upper jaws. Later analysis of the fossils however (Pêgas et al) has led to an alternative hypothesis that they are actually part of the lower jaws.
- A new large pterosaur from the Late Cretaceous of Patagonia, Fernando Emilio Novas, Martin Kundrat, Federico Agnolína, Martín Ezcurra, Per Erik Ahlberg, Marcelo Isasi, Alberto Arriagada & Pablo Chafrat - 2012.
- On the pterosaur Aerotitan sudamericanus (Neuquén Basin, Upper Cretaceous of Argentina), with comments on azhdarchoid phylogeny and jaw anatomy. - Cretaceous Research. 129: Article 104998. - Rodrigo V.Pêgas, BorjaHolgado, Leonardo D.Ortiz David, Mattia A.Baiano & Fabiana R.Costa - 2021.