PBDB Taxon

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

Diplodocoidea

Reptilia

Taxonomy

Diplodocoidea was named by Upchurch (1995). It is not extant.

It was reranked as the unranked clade Diplodocoidea by Bittencourt and Langer (2011), Tschopp et al. (2015), Mannion et al. (2019) and Apesteguía et al. (2021).

It was assigned to Sauropoda by Dong (1998) and Harris and Dodson (2004); to Sauropoda by Bittencourt and Langer (2011); and to Neosauropoda by Upchurch (1995), Upchurch (1995), Sereno (1997), Upchurch (1997), Sereno (1998), Wilson and Sereno (1998), Sereno (1999), Sereno et al. (1999), Wilson (2002), Upchurch et al. (2004), Gallina and Apesteguía (2005), Taylor and Naish (2005), Royo-Torres et al. (2006), Moser et al. (2006), Allain and Aquesbi (2008), Suteethorn et al. (2010), D'Emic (2012), Tschopp et al. (2015), Xing et al. (2015), Mannion et al. (2019) and Apesteguía et al. (2021).

Subtaxa

Amphicoelias, Cetiosaurus glymptonensis, Diplodocimorpha, Haplocanthosaurus (syn. Haplocanthus)

Synonyms

Rebbachisauroidea was named by Apesteguía (2007). It was considered monophyletic by Apesteguía (2007).

It was synonymized subjectively with Diplodocoidea by Wilson and Allain (2015).

It was assigned to Diplodocimorpha by Apesteguía (2007).
Cetiosaurus glymptonensis was named by Phillips (1871). Its type specimen is OUM J13750-13758 and is a 3D body fossil. Its type locality is Glympton (OUM), which is in a Bathonian marine horizon in the Forest Marble Formation of the United Kingdom.

It was recombined as Cetiosauriscus glymptonensis by McIntosh (1990); it was considered a nomen dubium by Upchurch and Martin (2003) and Barrett (2006).

Synonymy list

Year	Name and author
1871	Ceteosaurus glymptonensis Phillips p. 291
1871	Cetiosaurus glymptonensis Phillips p. 291
1882	Ceteosaurus glymptonensis Etheridge p. 198
1888	Cetiosaurus glymptonensis Lydekker p. 138
1890	Cetiosaurus glymptonensis Woodward and Sherborn p. 214
1890	Cetiosaurus glymptonensis Zittel p. 705
1900	Cetiosaurus glymptonensis Sauvage p. 504
1901	Cetiosaurus glymptonensis Nopcsa p. 205
1905	Cetiosaurus glymptonensis Williston p. 344
1939	Cetiosaurus glymptonensis Kuhn p. 84
1970	Cetiosaurus glymptonensis Steel p. 64
1979	Cetiosaurus glymptonensis Jain et al. p. 206
1990	Cetiosauriscus glymptonensis McIntosh p. 350
1995	Diplodocoidea Upchurch
1997	Diplodocoidea Sereno p. 444
1997	Diplodocoidea Upchurch p. 82A
1998	Diplodocoidea Dong p. 84
1998	Diplodocoidea Sereno p. 63
1998	Diplodocoidea Wilson and Sereno p. 54 fig. 44
1999	Diplodocoidea Sereno p. 2138 fig. 2
1999	Diplodocoidea Sereno et al. p. 1346 fig. 4
2002	Diplodocoidea Wilson p. 240 fig. 13
2004	Diplodocoidea Harris and Dodson p. 198
2004	Diplodocoidea Upchurch et al. p. 263
2005	Diplodocoidea Gallina and Apesteguía p. 159 fig. 5
2005	Diplodocoidea Taylor and Naish pp. 2-3 fig. 1
2006	Diplodocoidea Moser et al. p. 36
2006	Diplodocoidea Royo-Torres et al. p. 1926 fig. 3
2007	Rebbachisauroidea Apesteguía p. 535
2008	Diplodocoidea Allain and Aquesbi p. 403
2010	Diplodocoidea Suteethorn et al.
2011	Diplodocoidea Bittencourt and Langer p. 35
2012	Diplodocoidea D'Emic
2015	Diplodocoidea Tschopp et al.
2015	Diplodocoidea Xing et al.
2019	Diplodocoidea Mannion et al.
2021	Diplodocoidea Apesteguía et al.

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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	()

Rank	Name	Author
—	Romeriida
—	Diapsida	()
—	Archosauromorpha	(Huene 1946)
—	Crocopoda
—	Archosauriformes	Gauthier 1986
—	Eucrocopoda
—	Archosauria	()
informal	Avemetatarsalia
—	Ornithodira
—	Dinosauromorpha
—	Dinosauriformes
—	Dinosauria	()
—	Saurischia	()
—	Sauropoda	()
—	Gravisauria
—	Eusauropoda
—	Neosauropoda
—	Diplodocoidea	()
—	Diplodocoidea	()

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.

Unr. †Diplodocoidea Upchurch 1995

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G. †Amphicoelias Cope 1877

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†Amphicoelias altus Cope 1877

†Amphicoelias brontodiplodocus Galiano and Albersdörfer 2010

Unr. †Diplodocimorpha Calvo and Salgado 1995

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Unr. †Flagellicaudata Harris and Dodson 2004

Unr. †Dicraeosauridae Huene 1927 [dicraeosaurid]

G. †Amargasaurus Bonaparte 1984

†Amargasaurus cazaui Salgado and Bonaparte 1991

Invalid names: Amargasaurus groeberi Bonaparte 1984 [replaced]

G. †Amargatitanis Apesteguía 2007 [Amarga titan]

†Amargatitanis macni Apesteguía 2007

G. †Bajadasaurus Gallina et al. 2019

†Bajadasaurus pronuspinax Gallina et al. 2019

G. †Brachytrachelopan Rauhut et al. 2005

†Brachytrachelopan mesai Rauhut et al. 2005

G. †Dicraeosaurus Janensch 1914

†Dicraeosaurus hansemanni Janensch 1914

†Dicraeosaurus sattleri Janensch 1914

G. †Dyslocosaurus Mcintosh et al. 1992

†Dyslocosaurus polyonychius Mcintosh et al. 1992

G. †Kaatedocus Tschopp and Mateus 2013

†Kaatedocus siberi Tschopp and Mateus 2013

G. †Lingwulong Xu et al. 2018

†Lingwulong shenqi Xu et al. 2018

G. †Pilmatueia Coria et al. 2019

†Pilmatueia faundezi Coria et al. 2019

G. †Smitanosaurus Whitlock and Wilson Mantilla 2020

†Smitanosaurus agilis Marsh 1889

G. †Suuwassea Harris and Dodson 2004

†Suuwassea emilieae Harris and Dodson 2004

G. †Tharosaurus Bajpai et al. 2023

†Tharosaurus indicus Bajpai et al. 2023

Unr. †Diplodocidae Marsh 1884 [diplodocid]

Subfm. †Apatosaurinae Janensch 1929

G. †Apatosaurus Marsh 1877

Invalid names: Titanosaurus Marsh 1877 [synonym]

G. †Brontosaurus Marsh 1879

Invalid names: Elosaurus Peterson and Gilmore 1902 [synonym], Eobrontosaurus Bakker 1998 [synonym]

Invalid names: Atlantosaurus immanis Marsh 1878 [nomen dubium]

Unr. †Diplodocinae Janensch 1929 [diplodocine]

G. †Barosaurus Marsh 1890

Invalid names: Gigantosaurus Fraas 1908 [synonym]

G. †Dinheirosaurus Bonaparte and Mateus 1999

G. †Diplodocus Marsh 1878

Invalid names: Seismosaurus Gillette 1991 [synonym]

G. †Galeamopus Tschopp et al. 2015

G. †Leinkupal Gallina et al. 2014

G. †Supersaurus Jensen 1985

Invalid names: Dystylosaurus Jensen 1985 [synonym], Ultrasauros Olshevsky 1991 [synonym]

G. †Tornieria Sternfeld 1911

Invalid names: Dicraeosaurinae Janensch 1929 [empty]

Invalid names: Diplodocus lacustris Marsh 1884 [nomen dubium]

Unr. †Rebbachisauridae Bonaparte 1997

G. †Agustinia Bonaparte 1999

†Agustinia ligabuei Bonaparte 1999

G. †Amazonsaurus Carvalho et al. 2003

†Amazonsaurus maranhensis Carvalho et al. 2003

G. †Comahuesaurus Carballido et al. 2012

†Comahuesaurus windhauseni Carballido et al. 2012

G. †Histriasaurus Dalla Vecchia 1998

†Histriasaurus boscarollii Dalla Vecchia 1998

G. †Katepensaurus Ibiricu et al. 2013

†Katepensaurus goicoecheai Ibiricu et al. 2013

Unr. †Khebbashia Fanti et al. 2015

Unr. †Limaysaurinae Whitlock 2011

G. †Cathartesaura Gallina and Apesteguía 2005

G. †Limaysaurus Salgado et al. 2004 [Limay lizard]

G. †Nopcsaspondylus Apesteguía 2007 [Nopcsa vertebra]

Unr. †Nigersaurinae Whitlock 2011

G. †Demandasaurus Torcida Fernández-Baldor et al. 2011

G. †Itapeuasaurus Lindoso et al. 2019

G. †Nigersaurus Sereno et al. 1999

G. †Rebbachisaurus Lavocat 1954

G. †Tataouinea Fanti et al. 2013

Invalid names: Rebbachisaurinae Wilson and Allain 2015 [empty]

G. †Lavocatisaurus Canudo et al. 2018

†Lavocatisaurus agrioensis Canudo et al. 2018

G. †Maraapunisaurus Carpenter 2018

†Maraapunisaurus fragillimus Cope 1878

G. †Rayososaurus Bonaparte 1996

†Rayososaurus agrioensis Bonaparte 1996

G. †Sidersaura Lerzo et al. 2024

†Sidersaura marae Lerzo et al. 2024

G. †Xenoposeidon Taylor and Naish 2007

†Xenoposeidon proneneukos Taylor and Naish 2007

G. †Zapalasaurus Salgado et al. 2006

†Zapalasaurus bonapartei Salgado et al. 2006

Invalid names: Rebbachisaurus tamesnensis Lapparent 1957 [nomen dubium]

G. †Haplocanthosaurus Hatcher 1903

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†Haplocanthosaurus delfsi McIntosh and Williams 1988

†Haplocanthosaurus priscus Hatcher 1903

Invalid names: Haplocanthosaurus utterbacki Hatcher 1903 [synonym]

Invalid names: Haplocanthus Hatcher 1903 [synonym]

Invalid names: Cetiosaurus glymptonensis Phillips 1871 [nomen dubium], Rebbachisauroidea Apesteguía 2007 [synonym]

Diagnosis

Reference	Diagnosis
S. Apesteguía 2007 (Rebbachisauroidea)	The most inclusive clade containing WN-V6 (Histriasaurus boscarollii, see Appendix A), Rebbachisaurus garasbae Lavocat, 1954, and Limaysaurus tessonei (Calvo and Salgado, 1995), and MACN PV N35.