| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Epachthosaurus
Taxonomy
Epachthosaurus was named by Powell (1990).
It was assigned to Epachthosaurinae by Salgado (2003) and Franco-Rosas et al. (2004); to Andesauridae by Bonaparte and Coria (1993), Bonaparte (1996) and Apesteguía (2005); to Titanosauridae by Salgado and Martínez (1993), Jacobs et al. (1996), Salgado (1996), Salgado and Calvo (1997), Salgado et al. (1997), Smith et al. (2001), Calvo et al. (2007), Calvo et al. (2007) and González Riga et al. (2009); to Titanosauria by Novas (1997), Wilson and Sereno (1998), Wilson (2002), Powell (2003), Upchurch et al. (2004), Martínez et al. (2004), Salgado and Coria (2005), Martínez and Novas (2006), Casal and Ibiricu (2010), Mannion and Calvo (2011), Carballido et al. (2017) and Filippi et al. (2019); and to Lithostrotia by Wilson and Upchurch (2003), Curry Rogers (2005), Ksepka and Norell (2010), Filippi et al. (2011), González Riga and Ortiz David (2014), Poropat et al. (2016), González Riga et al. (2018), Hechenleitner et al. (2020) and Navarro et al. (2022).
It was assigned to Epachthosaurinae by Salgado (2003) and Franco-Rosas et al. (2004); to Andesauridae by Bonaparte and Coria (1993), Bonaparte (1996) and Apesteguía (2005); to Titanosauridae by Salgado and Martínez (1993), Jacobs et al. (1996), Salgado (1996), Salgado and Calvo (1997), Salgado et al. (1997), Smith et al. (2001), Calvo et al. (2007), Calvo et al. (2007) and González Riga et al. (2009); to Titanosauria by Novas (1997), Wilson and Sereno (1998), Wilson (2002), Powell (2003), Upchurch et al. (2004), Martínez et al. (2004), Salgado and Coria (2005), Martínez and Novas (2006), Casal and Ibiricu (2010), Mannion and Calvo (2011), Carballido et al. (2017) and Filippi et al. (2019); and to Lithostrotia by Wilson and Upchurch (2003), Curry Rogers (2005), Ksepka and Norell (2010), Filippi et al. (2011), González Riga and Ortiz David (2014), Poropat et al. (2016), González Riga et al. (2018), Hechenleitner et al. (2020) and Navarro et al. (2022).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1990 | Epachthosaurus Powell |
| 1993 | Epachthosaurus Bonaparte and Coria |
| 1993 | Epachthosaurus Salgado and Martínez |
| 1996 | Epachthosaurus Bonaparte p. 102 |
| 1996 | Epachthosaurus Jacobs et al. p. 601 |
| 1996 | Epachthosaurus Salgado p. 363 |
| 1997 | Epachtosaurus Novas p. 681 |
| 1997 | Epachthosaurus Salgado and Calvo p. 45 |
| 1997 | Epachthosaurus Salgado et al. p. 25 fig. 19 |
| 1998 | Epachthosaurus Wilson and Sereno p. 22 |
| 2001 | Epachthosaurus Smith et al. p. 1705 fig. 3 |
| 2002 | Epachthosaurus Wilson p. 248 |
| 2003 | Epachthosaurus Powell p. 157 |
| 2003 | Epachthosaurus Salgado p. 17 fig. 1 |
| 2003 | Epachthosaurus Wilson and Upchurch p. 156 |
| 2004 | Epachthosaurus Franco-Rosas et al. p. 332 |
| 2004 | Epachthosaurus Martínez et al. p. 108 |
| 2004 | Epachthosaurus Upchurch et al. p. 268 |
| 2005 | Epachthosaurus Apesteguía p. 259 |
| 2005 | Epachthosaurus Curry Rogers pp. 69-71 figs. 2.11-2.13 |
| 2005 | Epachthosaurus Salgado and Coria p. 440 |
| 2006 | Epachthosaurus Martínez and Novas p. 245 |
| 2007 | Epachthosaurus Calvo et al. p. 497 fig. 14 |
| 2007 | Epachthosaurus Calvo et al. p. 533 fig. 3 |
| 2009 | Epachthosaurus González Riga et al. p. 144 fig. 11 |
| 2010 | Epachthosaurus Casal and Ibiricu p. 248 |
| 2010 | Epachthosaurus Ksepka and Norell |
| 2011 | Epachthosaurus Filippi et al. |
| 2011 | Epachthosaurus Mannion and Calvo |
| 2014 | Epachthosaurus González Riga and Ortiz David |
| 2016 | Epachthosaurus Poropat et al. |
| 2017 | Epachthosaurus Carballido et al. |
| 2018 | Epachthosaurus González Riga et al. |
| 2019 | Epachthosaurus Filippi et al. |
| 2020 | Epachthosaurus Hechenleitner et al. |
| 2022 | Epachthosaurus Navarro et al. p. 344 fig. 13 |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. E. Powell 2003 | The same as for the type species. |