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Delectosaurus
Taxonomy
Delectosaurus was named by Kurkin (2001). Its type is Delectosaurus arefjevi.
It was assigned to Dicynodontidae by Kurkin (2001) and Ivakhnenko (2003); to Dicynodontinae by Ivakhnenko (2008); and to Dicynodontoidea by Kammerer and Angielczyk (2009) and Kammerer et al. (2011).
It was assigned to Dicynodontidae by Kurkin (2001) and Ivakhnenko (2003); to Dicynodontinae by Ivakhnenko (2008); and to Dicynodontoidea by Kammerer and Angielczyk (2009) and Kammerer et al. (2011).
Species
D. arefjevi (type species), D. berezhanensis
Synonymy list
Year | Name and author |
---|---|
2001 | Delectosaurus Kurkin p. 54 |
2003 | Delectosaurus Ivakhnenko |
2008 | Delectosaurus Ivakhnenko |
2009 | Delectosaurus Kammerer and Angielczyk |
2011 | Delectosaurus Kammerer et al. |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Delectosaurus Kurkin 2001
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†Delectosaurus arefjevi Kurkin 2001
†Delectosaurus berezhanensis Kurkin 2001
Diagnosis
Reference | Diagnosis | |
---|---|---|
A. A. Kurkin 2001 | Medium-sized dicynodonts. Skull 16-200 cm long. Teeth absent, except for pair of canines in upper jaw. Region of canine alveoli of upper jaw only weakly expanded. Canines directed ventrally. Preparietal elongated and extending anteriorly beyond postorbital arches. Parietal region elongated and half as wide as interorbital region. Parietals projecting above plane of parietal region to form medial crest. Postfrontals virtually lacking posterior processes visible on surface of skull roof. Palatines have short contact with premaxilla. Ectopterygoid either absent as separate bony element or well developed and displaced laterally relative to contact between pterygoid and maxilla. Palatal bones located in same plane as pterygoids. Anterior (maxillary) and posterior (quadratic) rami of pterygoids forming regular X-shaped figure. Occiput high and positioned vertically. Basioccipital lacking intertubercular crest. |