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Quaesitosaurus
Taxonomy
Quaesitosaurus was named by Kurzanov and Bannikov (1983).
It was assigned to Dicraeosauridae by Hunt et al. (1995); to Diplodocidae by Carroll (1988), Mcintosh et al. (1992), McIntosh (1997) and Dong (1998); to Dicraeosaurinae by Kurzanov and Bannikov (1983), Kurzanov and Bannikov (1983), McIntosh (1990), McIntosh (1990), Currie (1992) and Maryanska (2000); to Titanosauridae by Salgado and Calvo (1997) and Currie et al. (2003); to Saltasaurinae by Curry Rogers (2005); to Pakisauridae by Malkani (2008); to Titanosauria by Wilson and Sereno (1998), Wilson (2004) and Wilson and Upchurch (2009); and to Nemegtosauridae by Upchurch (1995), Upchurch (1995), Buffetaut et al. (2002), Upchurch et al. (2004), Wilson (2005), Grellet-Tinner et al. (2011) and Grellet-Tinner et al. (2012).
It was assigned to Dicraeosauridae by Hunt et al. (1995); to Diplodocidae by Carroll (1988), Mcintosh et al. (1992), McIntosh (1997) and Dong (1998); to Dicraeosaurinae by Kurzanov and Bannikov (1983), Kurzanov and Bannikov (1983), McIntosh (1990), McIntosh (1990), Currie (1992) and Maryanska (2000); to Titanosauridae by Salgado and Calvo (1997) and Currie et al. (2003); to Saltasaurinae by Curry Rogers (2005); to Pakisauridae by Malkani (2008); to Titanosauria by Wilson and Sereno (1998), Wilson (2004) and Wilson and Upchurch (2009); and to Nemegtosauridae by Upchurch (1995), Upchurch (1995), Buffetaut et al. (2002), Upchurch et al. (2004), Wilson (2005), Grellet-Tinner et al. (2011) and Grellet-Tinner et al. (2012).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1983 | Quaesitosaurus Kurzanov and Bannikov p. 90 figs. 1-2 |
| 1988 | Quaesitosaurus Carroll |
| 1990 | Quaesitosaurus McIntosh pp. 56-57 |
| 1992 | Quaesitosaurus Currie p. 244 |
| 1992 | Quaesitosaurus Mcintosh et al. p. 167 |
| 1995 | Quaesitosaurus Hunt et al. p. 265 |
| 1995 | Quaesitosaurus Upchurch p. 253 |
| 1997 | Quaesitosaurus McIntosh p. 657 |
| 1997 | Quaesitosaurus Salgado and Calvo p. 43 |
| 1998 | Quaesitosaurus Dong p. 84 |
| 1998 | Quaesitosaurus Wilson and Sereno pp. 22-23 |
| 2000 | Quaesitosaurus Maryanska p. 459 |
| 2002 | Quaesitosaurus Buffetaut et al. p. 97 |
| 2003 | Quaesitosaurus Currie et al. p. 10 |
| 2004 | Quaesitosaurus Upchurch et al. p. 263 |
| 2004 | Quaesitosaurus Wilson p. 130A |
| 2005 | Quaesitosaurus Curry Rogers pp. 69-71 figs. 2.11-2.13 |
| 2005 | Quaesitosaurus Wilson p. 311 |
| 2008 | Quaesitosaurus Malkani p. 72 |
| 2009 | Quaesitosaurus Wilson and Upchurch |
| 2011 | Quaesitosaurus Grellet-Tinner et al. p. 627 |
| 2012 | Quaesitosaurus Grellet-Tinner et al. p. 8 |
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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. †Quaesitosaurus Kurzanov and Bannikov 1983
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†Quaesitosaurus orientalis Kurzanov and Bannikov 1983
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S. M. Kurzanov and A. F. Bannikov 1983 | Skull high, short, with wide snout. Squamosal bone not in contact with quadratojugal. On the posterior side of the quadrate bone, there is a large "resonator" depression. Parietal aperture absent. Occipital condyle rounded. A canal passes posteriorly from the pituitary depression in the base of the occipital bone, opening immediately below the occipital condyle. Alveloar segment of lower jaw strongly bend inwards. Maxilla bears nine teeth. |