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Savannasaurus elliottorum

Reptilia

Taxonomy
Savannasaurus elliottorum was named by Poropat et al. (2016). Its type specimen is AODF 0660, a partial skeleton, and it is a 3D body fossil. Its type locality is Ho-Hum site, Belmont Station (AODL 0082), which is in a Cenomanian/Turonian floodplain siltstone in the Winton Formation of Australia. It is the type species of Savannasaurus.

Synonymy list
YearName and author
2016Savannasaurus elliottorum Poropat et al.
2019Savannasaurus elliottorum Brougham et al. p. 11
2020Savannasaurus elliottorum Poropat et al.
2021Savannasaurus elliottorum Frauenfelder et al. p. 354
2021Savannasaurus elliottorum Poropat et al. p. 32
2021Savannasaurus elliottorum Rigby et al. p. 2
2023Savannasaurus elliottorum Poropat et al. p. 163
2023Savannasaurus elliottorum Poropat et al. p. 4
2024Savannasaurus elliottorum Beeston et al.

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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
—Diapsida()
RankNameAuthor
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Saurischia()
—Sauropoda()
—Gravisauria
—Eusauropoda
—Neosauropoda
—Macronaria
—Titanosauriformes
—Somphospondyli
—Diamantinasauria
genusSavannasaurus
specieselliottorum

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.

†Savannasaurus elliottorum Poropat et al. 2016
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Diagnosis
ReferenceDiagnosis
S. F. Poropat et al. 2020The following characters are considered to be autapomorphies of Savannasaurus elliottorum: (1) undulating anterior articular surface of anterior caudal vertebral centra (concave dorsally and convex ventrally); (2) anterior-most caudal centra with shallow lateral pneumatic fossae (local autapomorphy within Somphospondyli); (3) sternal plate with straight lateral margin (reversal); (4) sternal plate lacking anteroposteriorly elongate ridge along the anterior portion of the ventral surface (local autapomorphy within Titanosauria); (5) metacarpal IV distal end hourglass-shaped; (6)pubis with ridge extending anteroventrally from ventral margin of obturator foramen on lateral surface; (7) ischium with proximal plate anteroposterior length > 40% the overall proximodistal length of the element; (8) astragalus taller proximodistally than wide mediolaterally or long anteroposteriorly; (9) astragalus mediolateral width and anteroposterior length essentially equal.
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 Early/Lower Turonian or 99.60000 to 89.30000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Cenomanian - Early/Lower Turonian100.5 - 89.3Australia (Queensland) Savannasaurus elliottorum (234751)
Late/Upper Cenomanian - Early/Lower Turonian99.6 - 89.3Australia (Queensland) Titanosauriformes indet. (62553)
Middle Cenomanian - Early/Lower Turonian99.6 - 89.3Australia (Queensland) Savannasaurus elliottorum (type locality: 153781)