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Yunnanosaurus
Taxonomy
Yunnanosaurus was named by Young (1940).
It was synonymized subjectively with Lufengosaurus by Tatarinov (1964), Rozhdestvensky (1965), Galton (1976), Galton and Cluver (1976) and Cooper (1981).
It was assigned to Thecodontosauridae by Romer (1956); to Prosauropoda by Huene (1958) and Simmons (1965); to Plateosauridae by Huene (1959), Romer (1966) and Charig (1967); to Anchisauridae by Steel (1970) and Dong (1992); to Massospondylidae by Sereno (1998) and Sereno (1999); to Plateosauria by Galton and Upchurch (2004); to Sauropodomorpha by Smith and Pol (2007); to Yunnanosauridae by Young (1942) and Lü et al. (2007); to Prosauropoda by Young (1951), Barrett et al. (2007) and Martínez (2009); to Massopoda by Novas et al. (2011); to Plateosauria by Upchurch et al. (2007) and Apaldetti et al. (2011); to Anchisauria by Yates (2010) and Otero and Pol (2013); and to Sauropodiformes by McPhee et al. (2015).
It was synonymized subjectively with Lufengosaurus by Tatarinov (1964), Rozhdestvensky (1965), Galton (1976), Galton and Cluver (1976) and Cooper (1981).
It was assigned to Thecodontosauridae by Romer (1956); to Prosauropoda by Huene (1958) and Simmons (1965); to Plateosauridae by Huene (1959), Romer (1966) and Charig (1967); to Anchisauridae by Steel (1970) and Dong (1992); to Massospondylidae by Sereno (1998) and Sereno (1999); to Plateosauria by Galton and Upchurch (2004); to Sauropodomorpha by Smith and Pol (2007); to Yunnanosauridae by Young (1942) and Lü et al. (2007); to Prosauropoda by Young (1951), Barrett et al. (2007) and Martínez (2009); to Massopoda by Novas et al. (2011); to Plateosauria by Upchurch et al. (2007) and Apaldetti et al. (2011); to Anchisauria by Yates (2010) and Otero and Pol (2013); and to Sauropodiformes by McPhee et al. (2015).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1940 | Yunnanosaurus Young p. 239 |
| 1942 | Yunnanosaurus Young p. 99 |
| 1951 | Yunnanosaurus Young p. 56 |
| 1956 | Yunnanosaurus Romer p. 617 |
| 1958 | Yunnanosaurus Huene p. 205 |
| 1959 | Yunnanosaurus Huene p. 120 |
| 1965 | Yunnanosaurus Simmons p. 62 |
| 1966 | Yunnanosaurus Romer p. 370 |
| 1967 | Yunnanosaurus Charig p. 712 |
| 1970 | Yunnanosaurus Steel p. 52 |
| 1992 | Yunnanosaurus Dong p. 163 |
| 1998 | Yunnanosaurus Sereno p. 71 fig. 7 |
| 1999 | Yunnanosaurus Sereno p. 2138 fig. 2 |
| 2004 | Yunnanosaurus Galton and Upchurch p. 236 fig. 12.11 |
| 2007 | Yunnanosaurus Barrett et al. p. 320 |
| 2007 | Yunnanosaurus Lü et al. p. 1 |
| 2007 | Yunnanosaurus Smith and Pol p. 668 fig. 7 |
| 2007 | Yunnanosaurus Upchurch et al. p. 62 fig. 3 |
| 2009 | Yunnanosaurus Martínez p. 162 fig. 22 |
| 2010 | Yunnanosaurus Yates p. 750 |
| 2011 | Yunnanosaurus Apaldetti et al. p. 16 fig. 13 |
| 2011 | Yunnanosaurus Novas et al. p. 341 fig. 4 |
| 2013 | Yunnanosaurus Otero and Pol |
| 2015 | Yunnanosaurus McPhee et al. p. 19 fig. 12 |
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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. †Yunnanosaurus Young 1940
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†Yunnanosaurus huangi Young 1940
†Yunnanosaurus robustus Young 1951
†Yunnanosaurus youngi Lü et al. 2007
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C.-C. Young 1951 | From the middle to rather large sized Prosauropoda with the skull proportionally rather long, more than 5. 5 of the length of the anterior caudal vertebrae, ca. 4. Nasal opening small. Anterior orbital opening rather large. Orbit rounded and represents the largest opening of the skull. Upper temporal opening is bean-shaped and can be seen mostly from the lateral aspect of the skull. Lower jaw slender with small dental foramen. Teeth with long pointed crown, distinctly spatulated in primitive Sauropod fashion. Serrations are poorly developed. Vertebrae robust. Scapula is strongly bending above the proximal expansion. Sternum is ossified and elongated. Humerus robust and shorter than the scapula. Hand with strong lateral reduction. Ilium small with the iliae border low. Ischium slender. Pupis rather thin. Femur and tibia massive, the latter is only somewhat shorter than the former. Fibula rather straight. Foot similarly built as t h a t of Gyposaurus |