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Diuqin lechiguanae
Taxonomy
Diuqin lechiguanae was named by Porfiri et al. (2024). Its type specimen is MUCPv 1401, a set of postcrania (Fragmentary but associated postcranial skeleton consisting of the posteriormost sacral vertebral neural arch, an anterior caudal vertebral neural arch, the near), and it is a 3D body fossil. Its type locality is Isthmus between Lago Barreales and Lago Mari Menuco, which is in a Santonian fluvial sandstone in the Bajo de la Carpa Formation of Argentina. It is the type species of Diuqin.
Synonymy list
| Year | Name and author |
|---|---|
| 2024 | Diuqin lechiguanae Porfiri et al. p. 5 figs. 2-5 |
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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.
†Diuqin lechiguanae Porfiri et al. 2024
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. D. Porfiri et al. 2024 | First unenlagiine theropod dinosaur to be discovered from the Bajo de la Carpa Formation (Neuquén Group, Upper Cretaceous), exhibiting the following autapomorphies and a unique combination of characters. Autapomorphies: (1) horizontal accessory lamina between spinopostzygapophyseal laminae on posteriormost sacral vertebra; (2) pair of elliptical, bilateral, dorsolaterally–ventromedially oriented foramina immediately anterolateral to base of neural spine in (at least) posteriormost sacral and anterior caudal vertebrae; (3) distolateral deltopectoral ridge of humerus arises on distal half of deltopectoral crest. Unique combination of characters: postzygapophyses of posteriormost sacral vertebra
strongly posteriorly projected; humeral deltopectoral crest oriented anteriorly (also present in Austroraptor cabazai); absence of sulcus between deltopectoral crest and humeral shaft (also present in Austroraptor); sharp crest proximal to humeral ectepicondyle with proximally positioned tubercle (also present in Buitreraptor). |
Measurements
No measurements are available
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| Source: f = family, o = order | |||||
| References: Marsh 1875, Holtz et al. 2000, Kiessling 2004 | |||||