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Andesaurus delgadoi

Reptilia -

Taxonomy
Andesaurus delgadoi was named by Calvo and Bonaparte (1991). Its type specimen is MUCPv 132, a set of vertebrae, and it is a 3D body fossil. Its type locality is Villa El Chocón, 5 km southwest (MUCP), which is in a Cenomanian terrestrial sandstone in the Candeleros Formation of Argentina. It is the type species of Andesaurus.

Synonymy list
YearName and author
1991Andesaurus delgadoi Calvo and Bonaparte pp. 305-308 figs. 3-8
1993Andesaurus delgadoi Bonaparte and Coria
1993Andesaurus delgadoi Salgado and Martínez
1995Andesaurus delgadoi Calvo and Salgado p. 30 fig. 1
1996Andesaurus delgadoi Bonaparte p. 101 fig. 32
1996Andesaurus delgadoi Calvo and Salgado p. 392
1996Andesaurus delgadoi Jacobs et al. p. 600
1996Andesaurus delgadoi Salgado p. 360
1997Andesaurus delgadoi Novas p. 680
1997Andesaurus delgadoi Salgado et al. p. 5
1999Andesaurus delgadoi Calvo p. 22
1999Andesaurus delgadoi Prasad and Sahni p. 382
2002Andesaurus delgadoi Wilson p. 248
2003Andesaurus delgadoi Calvo and González Riga
2004Andesaurus delgadoi Upchurch et al. p. 267
2004Andesaurus delgadoi You et al. p. 908
2005Andesaurus delgadoi Apesteguía p. 249
2005Andesaurus delgadoi Campos et al. p. 577
2005Andesaurus delgadoi Curry Rogers p. 66
2005Andesaurus delgadoi Kellner et al. p. 561
2005Andesaurus delgadoi Salgado and Coria p. 438
2006Andesaurus delgadoi Kellner et al. p. 2
2006Andesaurus delgadoi Santucci and Bertini p. 354
2007Andesaurus delgadoi Calvo et al. p. 532
2007Andesaurus delgadoi Casal et al. p. 57
2007Andesaurus delgadoi Castro et al. p. 198
2009Andesaurus delgadoi González Riga et al. p. 141
2009Andesaurus delgadoi Zhang et al. p. 220
2010Andesaurus delgadoi Calvo and Porfiri p. 101
2010Andesaurus delgadoi Casal and Ibiricu p. 253
2011Andesaurus delgadoi Mannion and Calvo
2012Andesaurus delgadoi Candeiro and Harris p. 73
2012Andesaurus delgadoi D'Emic
2012Andesaurus delgadoi Mannion and Otero p. 634

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
OlfactoresJefferies 1991
subphylumVertebrata
Gnathostomata()
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Eosuchia()
Neodiapsida
RankNameAuthor
SauriaGauthier 1984
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Saurischia()
Eusaurischia
Sauropodomorpha(Huene 1932)
Massopoda
Sauropodiformes
Sauropoda()
Eusauropoda
Neosauropoda
Macronaria
Titanosauriformes
Somphospondyli
Titanosauria
genusAndesaurus
speciesdelgadoi

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
ReferenceDiagnosis
P. D. Mannion and J. O. Calvo 2011Andesaurus can be diagnosed on the basis of the following five autapomorphies: (1) posterior dorsal neural spine height greater than twice the centrum height (autapomorphic within Macronaria); (2) anterior–middle caudal centra square shaped in lateral view; (3) anteroposteriorly elongate, elliptical fossa present on the anterior half of the lateral surface of the centrum of middle– posterior caudal vertebrae, close to the dorsal margin; (4) ridge along the mishaft of the ventral surface of metacarpal I, close to the ventromedial margin; and (5) prominent ventromedial ridge along the distal half of metacarpal V.