The genus was named in 2000 by David Martille, Eberhard Frey, Guillermo Chong Dias and Charles Michael Bell. The only species is Domeykodactylus ceciliae . The generic name comes from the name of the Cordillera-Domeiko mountain range and the Greek. δάκτυλος - “finger”, with reference to the wing finger, typical of pterosaurs. The species name is given in honor of the geologist Cecilia Demargasso from Universidad Católica del Norte , "who was so kind to us."
Domeykodactylus is based on a holotype found in the Sierra da Candeleros and stored at the Faculty of Geology at Universidad Católica del Norte . It consists of fragments of the jaw; the premaxilla , found in the same rocks, refers to it as a paratype . Initially, fossil remains attributed to the pterodastro . Domeykodactylus had a ridge running along the upper part of the premaxilla. The bone structure of the ridge consists of vertical trabeculae , narrow racks; This structure was mistaken for pterodaustro filtering plates.
The jaw has a short symphysis . There are sixteen tooth holes in each dental bone, but the teeth themselves, however, have been lost. The holes are narrow, oval, with edges slightly elevated above the jaw. Probably, the teeth were small, and the deeper they were in the mouth, the smaller and sparse they became.
The length of the skull is estimated at 30 centimeters, and the wingspan is 1 meter.
Scientists describing the species have found it very close to ctenochasmatids and jungaryperids based on the structure of the ridge. Because of the protruding tooth holes, the species was assigned to the last group. This was the first discovery of the Jungapterid from South America , most of the other members of the family come from Asia [1] .
