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Sirindhorna khoratensis
Taxonomy
Sirindhorna khoratensis was named by Shibata et al. (2015). Its type specimen is NRRU3001-166, a partial skull (An articulated braincase comprising the supraoccipital, exoccipitals, opisthotics, prootics, parietals, frontals, basioccipital, basisphenoid orbitosphenoids, p), and it is a 3D body fossil. Its type locality is Ban Saphan Hin, which is in an Aptian terrestrial conglomerate in the Khok Kruat Formation of Thailand.
Synonymy list
| Year | Name and author |
|---|---|
| 2015 | Sirindhorna khoratensis Shibata et al. figs. 2-13, 15-16 |
| 2022 | Sirindhorna khoratensis Ji and Zhang p. 7 |
| 2022 | Sirindhorna khoratensis Samathi and Suteethorn p. 301 |
| 2023 | Sirindhorna khoratensis Manitkoon et al. p. 1 |
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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.
†Sirindhorna khoratensis Shibata et al. 2015
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. Shibata et al. 2015 | Basal hadrosauroid distinguished by an autapomorphy: sagittal crest extending along entire dorsal surface of the parietal and reaching the frontoparietal suture, and the following unique combination of characters: relatively straight frontoparietal suture, caudodorsally faced supraoccipital, no participation of the supraoccipital in the foramen magnum, antorbital fossa of the maxilla not visible, slightly rostrally deepening dentary ramus, simple troughs for dentary alveoli with vertical walls and tooth crown-shaped base, vertical coronoid process expanded along rostral and caudal margins, and dentary teeth with primary and secondary ridges but no accessory ridges. |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| References: Marsh 1875, Benton 1983 | |||||