PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Epachthosaurus

Reptilia

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).

Species

E. sciuttoi

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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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
—	Osteichthyes	()
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
—	Sauropsida
class	Reptilia
subclass	Eureptilia	()
—	Romeriida

Rank	Name	Author
—	Diapsida	()
—	Archosauromorpha	(Huene 1946)
—	Crocopoda
—	Archosauriformes	Gauthier 1986
—	Eucrocopoda
—	Archosauria	()
informal	Avemetatarsalia
—	Ornithodira
—	Dinosauromorpha
—	Dinosauriformes
—	Dinosauria	()
—	Saurischia	()
—	Sauropoda	()
—	Gravisauria
—	Eusauropoda
—	Neosauropoda
—	Macronaria
—	Titanosauriformes
—	Titanosauria
—	Lithostrotia
genus	Epachthosaurus

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. †Epachthosaurus Powell 1990

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†Epachthosaurus sciuttoi Powell 1990

Diagnosis

Reference	Diagnosis
J. E. Powell 2003	The same as for the type species.

Measurements

No measurements are available

Composition:

hydroxyapatiteinfrao

Entire body:

yesinfrao

Adult length:

10 to < 100infrao

Adult width:

10 to < 100infrao

Adult height:

10 to < 100infrao

Thickness:

thickinfrao

Architecture:

compact or denseinfrao

Form:

sphericalinfrao

Ontogeny:

accretion, modification of partsinfrao

Grouping:

gregariousinfrao

Environment:

terrestrialinfrao

Locomotion:

actively mobileinfrao

Life habit:

ground dwellinginfrao

Diet:

herbivoreinfrao

Reproduction:

oviparousinfrao

Dispersal:

direct/internalinfrao

Dispersal 2:

mobileinfrao

Created:

2004-12-14 12:49:10

Modified:

2004-12-14 14:49:10

Source: infrao = infraorder

Reference: Marsh 1875

Age range: base of the Late/Upper Cenomanian to the top of the Late/Upper Turonian or 99.60000 to 89.30000 Ma

Collections (3 total)

Time interval	Ma	Country or state	Original ID and collection number
Late/Upper Cenomanian - Early/Lower Turonian	99.6 - 89.3	Argentina (Chubut)	E. sciuttoi (49099) Laplatasaurus sp. (38952)
Middle Cenomanian - Late/Upper Turonian	99.6 - 89.3	Argentina (Chubut)	E. sp. (115564)