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Huehuecanauhtlus tiquichensis
Taxonomy
Huehuecanauhtlus tiquichensis was named by Ramírez-Velasco et al. (2012). Its type specimen is IGM 6253, a partial skeleton, and it is a 3D body fossil. Its type locality is Barranca Los Bonetes (f6), which is in a Santonian terrestrial sandstone in the Cutzamala Formation of Mexico. It is the type species of Huehuecanauhtlus.
Synonymy list
| Year | Name and author |
|---|---|
| 2012 | Huehuecanauhtlus tiquichensis Ramírez-Velasco et al. p. 384 figs. 3-13 |
| 2014 | Huehuecanauhtlus tiquichensis Ramírez-Velasco et al. p. 344 |
| 2014 | Huehuecanauhtlus tiquichensis Rivera-Sylva and Carpenter p. 157 |
| 2016 | Huehuecanauhtlus tiquichensis Prieto-Márquez et al. p. 6 |
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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.
†Huehuecanauhtlus tiquichensis Ramírez-Velasco et al. 2012
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. A. Ramírez-Velasco et al. 2012 | Hadrosauroid dinosaur characterized by the unique combination of the following characters: two teeth exposed on the occlusal plane of the rostral third and the posterior
third of the dentary and maxilla, respectively; seven sacral vertebrae; tall neural spines of posterior vertebrae, being between 3.5 and 4 times taller than their corresponding centra; supraacetabular process as long as 75% of the length of the central iliac plate, with an apex located above the posteroventral corner of the ischiac tuberosity, as in Claosaurus agilis; and short and trapezoidal (in lateral view) postacetabular process, with a length that is less than 80% of the length of the iliac central plate. Huehuecanauhtlus tiquichensis differs from other hadrosauroids in possessing an extremely deflected preacetabular process of the ilium, so that the bisecting long axis of the process forms an angle less than 130° with the horizontal plane defined by the ischiac and pubic peduncles. It also differs from basal hadrosauroids in having a very deep concave profile of the dorsomedial margin of the iliac plate, adjacent to the supraacetabular process. |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| References: Marsh 1875, Benton 1983 | |||||