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Sauroposeidon proteles

Reptilia

Taxonomy
Sauroposeidon proteles was named by Wedel et al. (2000). Its type specimen is OMNH 53062, a set of vertebrae, and it is a 3D body fossil. Its type locality is Arnold's Bottom, OMNH locality V821, which is in an Aptian/Albian fluvial sandstone/claystone in the Antlers Formation of Oklahoma.

Synonyms
Synonymy list
YearName and author
2000Sauroposeidon proteles Wedel et al. p. 110 figs. 1-5
2004Sauroposeidon proteles Upchurch et al. p. 267
2006Sauroposeidon proteles Royo-Torres et al. figs. Table S3
2007Sauroposeidon proteles Calvo et al. p. 530
2007Sauroposeidon proteles Naish and Martill p. 499
2007Paluxysaurus jonesi Rose p. 5 figs. 4-29
2007Sauroposeidon proteles Rose p. 36
2009Paluxysaurus jonesi Zhang et al. p. 220
2011Paluxysaurus jonesi Saegusa and Tomida p. 254
2011Sauroposeidon proteles Saegusa and Tomida p. 254
2011Sauroposeidon proteles Taylor et al. p. 91
2012Sauroposeidon proteles D'Emic
2012Sauroposeidon proteles D'Emic and Foreman p. 884
2013Sauroposeidon proteles D'Emic p. 719
2013Sauroposeidon proteles Winkler et al. p. 459
2014Sauroposeidon proteles Li et al. p. 16
2014Sauroposeidon proteles Woodruff and Foster p. 216
2015Sauroposeidon proteles Adams p. 9
2015Sauroposeidon proteles Cerda et al. p. 12

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Life
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
Sauropsida
classReptilia
RankNameAuthor
subclassEureptilia()
Romeriida
Diapsida()
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Saurischia()
Sauropoda()
Titanosauriformes
Somphospondyli
genusSauroposeidon
speciesproteles

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.

Sauroposeidon proteles Wedel et al. 2000
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Invalid names: Paluxysaurus jonesi Rose 2007 [synonym]
Diagnosis
ReferenceDiagnosis
M. J. Wedel et al. 2000Cervical centra extremely elongate; centrum length more than five times posterior centrum height. Differs from all other sauropods in possessing well-defined centroparapophyseal laminae that extend to the posterior ends of the centra, diapophyses located approximately one third of centrum length behind anterior condyles, deeply excavated neural spines which are perforate in anterior cer vicals, and hypertrophied central pneumatic fossae that extend posteriorly to the cotyles. Neural spines occupy anterior nine-tenths of centra and are not bifurcate. Cervical ribs are slender and elongated, with long, robust anterior processes that extend nearly to anterior condyles; total length of each cervical rib equals or exceeds 3 centrum-lengths.
M. J. Wedel et al. 2000Cervical centra extremely elongate; EI of mid-cervicals greater than 5. Differs from all other sauropods in possessing well-defined centroparapophyseal laminae that extend to the posterior ends of the centra, diapophyses located approximately one third of centrum length behind anterior condyles, deeply excavated neural spines which are perforate in anterior cervicals, and hypertrophied central pneumatic fossae that extend posteriorly to the cotyles. The internal structure is entirely composed of pneumatic camellae separated by bony septa ranging in thickness from less than 1 mm to approximately 3 mm. Total length of each cervical rib equals or exceeds three centrum-lengths.
M. D. D'Emic 2013Extreme elongation of the middle cervical vertebrae (length/posterior centrum height > 6), middle cervical vertebrae with posterior expansion of the pneumatic fossa to the cotyle, neural spines perforated in middle cervical vertebrae, top of neural spine with broad midline ridge flanked by small fossae at its anterior and posterior ends, middle and posterior dorsal neural spines that taper distally, anterior caudal vertebral centra roughly square in cross section, anterior caudal vertebrae with divergent spinoprezygapophyseal laminae (angle greater than 50◦) forming wide spinoprezygapophyseal fossae, scapula with two processes at the base of the ventral edge of the blade, humerus gracile, length/midshaft width > 7.5.