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Sinosaurus triassicus
Taxonomy
Sinosaurus triassicus was named by Young (1940). Its type specimen is IVPP V.34, a partial skull, and it is a 3D body fossil. Its type locality is Huangchiatien, Lufeng, which is in a Sinemurian terrestrial horizon in the Lufeng Formation of China. It is the type species of Sinosaurus.
It was considered a nomen dubium by Irmis (2004).
It was considered a nomen dubium by Irmis (2004).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1940 | Sinosaurus triassicus Young p. 237 |
| 1941 | Sinosaurus triassicus Bien p. 174 |
| 1944 | Sinosaurus triassicus Young p. 4 |
| 1946 | Sinosaurus triassicus Young p. 5 |
| 1948 | Sinosaurus triassicus Young p. 79 |
| 1951 | Sinosaurus triassicus Young p. 34 |
| 1961 | Sinosaurus triassicus Hu p. 278 |
| 1964 | Sinosaurus triassicus Walker p. 107 |
| 1965 | Sinosaurus triassicus Simmons p. 64 |
| 1966 | Sinosaurus triassicus Young p. 67 |
| 1970 | Sinosaurus triassicus Steel p. 57 |
| 1970 | Sinosaurus triassicus Swinton p. 139 |
| 1977 | Sinosaurus triassicus Rozhdestvensky p. 111 |
| 1982 | Sinosaurus triassicus Yadagiri p. 5 |
| 1984 | Sinosaurus triassicus Welles p. 174 |
| 1993 | Dilophosaurus sinensis Hu p. 65 fig. 1 |
| 2009 | Sinosaurus triassicus Wu et al. p. 20 |
| 2012 | Dilophosaurus sinensis Carrano et al. p. 229 |
| 2014 | Sinosaurus triassicus Xing et al. p. 1653 |
| 2016 | Sinosaurus triassicus Rauhut et al. p. 7 |
| 2017 | Sinosaurus triassicus Wang et al. p. 183 |
| 2017 | Sinosaurus sinensis Wang et al. p. 184 |
| 2023 | Sinosaurus sinensis Zhang et al. |
| 2023 | Sinosaurus triassicus Zhang 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.
†Sinosaurus triassicus Young 1940
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Invalid names: Dilophosaurus sinensis Hu 1993 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C.-C. Young 1951 | Carnosauria of gigantic size, maxilla high. Teeth with long massive root, compressed sharply pointed and curving backwards. Both the anterior and posterior edges are marked by fine serrations. | |
| M. T. Carrano et al. 2012 (Dilophosaurus sinensis) | Theropod with vertical groove or channel on lateral premaxilla adjacent to contact with maxilla. | |
| Z.-C. Zhang et al. 2023 | Diagnostic Feature From Holotype. The ridge over the lateral surface of maxilla dorsal to the alveolar line.
Revised Features from Referred Specimen. The primary diagnostic features of S. triassicus include (1) the vertical crest developed dorsoventrally from the ventral portion of the maxilla to the nasal crest; (2) ventral border of the antorbital fenestra formed mostly by the anterior process of the jugal, taking more than half of the total length; and (3) the fenestra between the nasal, lacrimal and the prefrontal. |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Marsh 1875 | |||||
Age range: base of the Hettangian to the top of the Sinemurian or 201.30000 to 190.80000 Ma
Collections (15 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Hettangian | China (Yunnan) | Sinosaurus triassicus (49501 49503 173377) | |
| Hettangian - Sinemurian | China (Yunnan) | Dilophosaurus sinensis (25125) Sinosaurus triassicus (71803 71907 229976 229977 237360) | |
| Sinemurian | China (Yunnan) | Sinosaurus triassicus (type locality: 49773 49775 59348 66926 72091 78993) |