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Camarasaurus grandis

Reptilia - Camarasauridae

Taxonomy
Apatosaurus grandis was named by Marsh (1877). Its type specimen is YPM 1905 and is a 3D body fossil. Its type locality is Quarry 1, Como Bluff (YPM), which is in a Kimmeridgian/Tithonian wet floodplain claystone in the Morrison Formation of Wyoming.

It was recombined as Morosaurus grandis by Marsh (1878), Marsh (1880), Quenstedt (1882), Zittel (1890), Kehrer (1895), Gaudry (1896), Marsh (1896), Marsh (1897), Williston (1898), Knight (1900), Gadow (1901), Hay (1902), Fraas (1908), Versluys (1910), Lull (1911), von Zittel (1911), Mook (1916), Lull (1919), Pompeckj (1920), Joleaud (1924) and Perrier (1928); it was synonymized subjectively with Camarasaurus impar by Gilmore (1925) and Hay (1930); it was recombined as Camarosaurus grandis by Johnson (1931); it was recombined as Camarasaurus grandis by Steel (1970), Swinton (1970), Ingavat and Taquet (1978), Jain et al. (1979), McIntosh (1981), Rich et al. (1983), Sanz et al. (1987), Paul (1988), McIntosh (1990), Breithaupt (1990), Chenoweth (1991), Mcintosh et al. (1992), Hunt and Lucas (1993), Carpenter and McIntosh (1994), McIntosh et al. (1996), Wilson and Sereno (1998), Carpenter (1999), Tidwell et al. (1999), Wedel et al. (2000), McWhinney et al. (2001), Upchurch et al. (2004), Ikejiri (2005), Apesteguía (2005), Tidwell et al. (2005), Ikejiri et al. (2005), Foster (2005), McIntosh (2005), Gallina and Apesteguía (2005), Mateus (2006), Chure et al. (2006), Moser et al. (2006), Schwarz et al. (2007), Apesteguía (2007), Calvo et al. (2007), Zhang et al. (2009), González Riga et al. (2009), Tschopp et al. (2015), Tschopp et al. (2015), Tschopp et al. (2019), Mocho et al. (2019) and Woodruff et al. (2021).

Synonyms
Synonymy list
YearName and author
1877Apatosaurus grandis Marsh
1878Apatosaurus grandis King p. 346
1878Morosaurus impar King p. 346
1878Morosaurus grandis Marsh
1878Morosaurus impar Marsh
1878Morosaurus robustus Marsh p. 414 figs. Pl. 8, fig. 1-2
1880Morosaurus grandis Marsh p. 254
1880Apatosaurus grandis Sauvage p. 523
1880Morosaurus impar Sauvage p. 523
1880Morosaurus robustus Sauvage p. 523
1882Morosaurus grandis Quenstedt p. 188
1890Morosaurus grandis Zittel p. 709
1890Morosaurus robustus Zittel p. 711
1895Morosaurus grandis Kehrer p. 355
1896Morosaurus grandis Gaudry p. 218
1896Morosaurus robustus Marsh figs. Pl. 35
1896Pleurocoelus montanus Marsh p. 40
1896Morosaurus grandis Marsh p. 181 figs. 31-33
1896Pleurocoelus montanus Marsh p. 184 figs. 35-41
1897Morosaurus grandis Marsh p. 498
1898Morosaurus grandis Williston p. 173
1898Morosaurus robustus Williston p. 173
1900Morosaurus grandis Knight p. 384
1901Morosaurus grandis Gadow p. 419
1901Apatosaurus grandis Nopcsa p. 203
1901Morosaurus robustus Nopcsa p. 206
1901Pleurocoelus montanus Nopcsa p. 207
1902Morosaurus grandis Hay p. 483
1902Morosaurus impar Hay p. 483
1902Morosaurus robustus Hay p. 483
1902Pleurocoelus montanus Hay p. 483
1908Morosaurus grandis Fraas p. 142
1910Morosaurus grandis Versluys p. 214
1911Morosaurus grandis Lull p. 191
1911Morosaurus grandis von Zittel p. 286
1916Morosaurus grandis Mook p. 135
1916Morosaurus impar Mook p. 137
1916Morosaurus robustus Mook p. 137
1916Pleurocoelus montanus Mook p. 139
1919Morosaurus grandis Lull p. 38
1920Morosaurus grandis Pompeckj p. 112
1924Morosaurus grandis Joleaud p. 45
1925Camarasaurus impar Gilmore p. 352
1925Camarasaurus robustus Gilmore p. 352
1927Pleurocoelus montanus Huene p. 457
1928Morosaurus grandis Perrier p. 3086
1930Camarasaurus impar Hay p. 191
1930Camarasaurus robustus Hay p. 191
1930Astrodon montanus Hay p. 193
1931Camarosaurus grandis Johnson p. 358
1962Astrodon montanus Kingham p. 40
1970Camarasaurus grandis Steel p. 72
1970Camarasaurus impar Steel p. 72
1970Camarasaurus robustus Steel p. 72
1970Camarasaurus grandis Swinton p. 173
1978Camarasaurus grandis Ingavat and Taquet pp. SP1-2
1979Camarasaurus grandis Jain et al. p. 206
1981Camarasaurus grandis McIntosh p. 14
1983Camarasaurus grandis Rich et al. p. 285
1987Camarasaurus grandis Sanz et al. p. 59
1988Camarasaurus grandis Paul p. 8
1990Camarasaurus grandis Breithaupt p. 8
1990Camarasaurus grandis McIntosh p. 385
1991Camarasaurus grandis Chenoweth p. 17
1992Camarasaurus grandis Mcintosh et al. p. 164
1993Camarasaurus grandis Hunt and Lucas p. 73
1994Camarasaurus grandis Carpenter and McIntosh p. 275
1996Camarasaurus grandis McIntosh et al. p. 92
1998Camarasaurus grandis Wilson and Sereno p. 20
1999Camarasaurus grandis Carpenter p. 3
1999Camarasaurus grandis Tidwell et al. p. 31
2000Camarasaurus grandis Wedel et al. p. 368
2001Camarasaurus grandis McWhinney et al. p. 365
2004Camarasaurus grandis Upchurch et al. p. 266
2005Camarasaurus grandis Apesteguía p. 253 fig. 12.2
2005Camarasaurus grandis Foster p. 143
2005Camarasaurus grandis Gallina and Apesteguía p. 158
2005Camarasaurus grandis Ikejiri p. 369
2005Camarasaurus grandis Ikejiri et al. pp. 154-155
2005Camarasaurus grandis McIntosh p. 62
2005Camarasaurus grandis Tidwell et al. p. 181
2006Camarasaurus grandis Chure et al. p. 236
2006Camarasaurus grandis Mateus p. 231
2006Camarasaurus grandis Moser et al. p. 46
2007Camarasaurus grandis Apesteguía p. 542
2007Camarasaurus grandis Calvo et al. p. 532
2007Camarasaurus grandis Schwarz et al. p. 247
2009Camarasaurus grandis González Riga et al. p. 141
2009Camarasaurus grandis Zhang et al. p. 216
2015Camarasaurus grandis Tschopp et al.
2015Camarasaurus grandis Tschopp et al. p. 2
2019Camarasaurus grandis Mocho et al. p. 5
2019Camarasaurus grandis Tschopp et al. p. 11
2021Camarasaurus grandis Woodruff et al. p. 119

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
RankNameAuthor
Diapsida()
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Saurischia()
Sauropoda()
Gravisauria
Eusauropoda
Neosauropoda
Macronaria
Camarasauromorpha
familyCamarasauridae
genusCamarasaurus
speciesgrandis()

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.

Camarasaurus grandis Marsh 1877
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Invalid names: Morosaurus impar Marsh 1878 [synonym], Morosaurus robustus Marsh 1878 [synonym], Pleurocoelus montanus Marsh 1896 [synonym]
Diagnosis
ReferenceDiagnosis
T. Ikejiri 2005A species of Camarasaurus with a tall neural arch in dorsal vertebrae from no. 3 to 8, T-shaped neural spine from anterior view of caudal vertebrae from no. 1 to 5 or 6.