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Amurosaurus riabinini

Reptilia - Hadrosauridae

Taxonomy
Amurosaurus riabinini was named by Bolotsky and Kurzanov (1991). Its type specimen is AEHM 1/12, a partial skull (left maxilla and dentary), and it is a 3D body fossil. Its type locality is Blagoveschensk, which is in a Maastrichtian crevasse splay claystone/claystone in the Udurchukan Formation of the Russian Federation.

Synonyms
Synonymy list
YearName and author
1991Amurosaurus riabinini Bolotsky and Kurzanov
2000Amurosaurus riabinini Godefroit p. 32
2003Amurosaurus riabinini Godefroit et al. p. 148
2004Amurosaurus riabinini Godefroit et al. p. 147
2004Amurosaurus riabinini Godefroit et al. p. 589
2004Amurosaurus riabinini Horner et al. p. 441
2006Amurosaurus riabinini Lund and Gates p. 270
2006Amurosaurus riabinini Prieto-Márquez et al. p. 936
2007Amurosaurus riabinini Evans and Reisz p. 387 fig. 9
2007Amurosaurus riabinini Gates et al. p. 926 fig. 10
2008Sahaliyania elunchunorum Godefroit et al. p. 49 figs. 2-10
2008Amurosaurus riabinini Godefroit et al. p. 68
2009Sahaliyania elunchunorum Markevich et al. p. 118
2010Amurosaurus riabinini Alifanov and Bolotsky p. 85
2010Amurosaurus riabinini Evans p. 416
2010Amurosaurus riabinini Prieto-Marquez p. 847
2010Amurosaurus riabinini Prieto-Marquez and Salinas p. 835 fig. 20
2010Sahaliyania elunchunorum Prieto-Marquez and Salinas p. 835 fig. 20
2010Amurosaurus riabinini Prieto-Márquez p. 5 fig. 2
2010Sahaliyania elunchunorum Prieto-Márquez p. 5 fig. 2
2010Amurosaurus riabinini Prieto-Márquez p. 442
2010Sahaliyania elunchunorum Prieto-Márquez p. 443
2010Amurosaurus riabinini Prieto-Márquez and Wagner p. 1243 fig. 3
2010Sahaliyania elunchunorum Prieto-Márquez and Wagner p. 1243 fig. 3
2011Amurosaurus riabinini Godefroit et al. p. 168
2011Sahaliyania elunchunorum Godefroit et al. p. 177–178
2011Amurosaurus riabinini Prieto-Márquez p. 64
2011Sahaliyania elunchunorum Prieto-Márquez p. 64
2011Amurosaurus riabinini Prieto-Márquez p. 475
2011Sahaliyania elunchunorum Prieto-Márquez p. 475
2011Amurosaurus riabinini Prieto-Márquez p. 789
2011Amurosaurus riabinini Sullivan et al. p. 405
2011Sahaliyania elunchunorum Sullivan et al. p. 405
2011Amurosaurus riabinini Sun et al. p. 125
2011Sahaliyania elunchunorum Sun et al. p. 125
2012Amurosaurus riabinini Godefroit et al. p. 532
2012Sahaliyania elunchunorum Godefroit et al. p. 532
2012Amurosaurus riabinini Godefroit et al. p. 14
2012Amurosaurus riabinini Prieto-Marquez et al. p. 11
2012Sahaliyania elunchunorum Prieto-Marquez et al. p. 18–21
2012Amurosaurus riabinini Ramírez-Velasco et al. p. 392
2012Sahaliyania elunchunorum Ramírez-Velasco et al. p. 392
2012Amurosaurus riabinini Saveliev et al. p. 80
2012Sahaliyania elunchunorum Xing et al. p. 161
2013Amurosaurus riabinini Cruzado-Caballero et al.
2013Sahaliyania elunchunorum Cruzado-Caballero et al.
2014Amurosaurus riabinini Bolotsky et al. p. 320
2014Sahaliyania elunchunorum Bolotsky et al. p. 321
2015Sahaliyania elunchunorum Company et al. p. 78
2015Amurosaurus riabinini Tan et al. p. 260
2017Amurosaurus riabinini Cruzado-Caballero and Powell p. 5
2017Sahaliyania elunchunorum Cruzado-Caballero and Powell p. 5
2018Amurosaurus riabinini Fondevilla et al. p. 8
2018Sahaliyania elunchunorum Fondevilla et al. p. 8
2019Amurosaurus riabinini Takasaki et al. p. 5
2021Amurosaurus riabinini Holland et al. p. 15
2022Amurosaurus riabinini Xing 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()
—Archosauromorpha(Huene 1946)
RankNameAuthor
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Ornithischia()
—Genasauria
—Cerapoda
—Ornithopoda()
—Clypeodonta
—Iguanodontia()
—Dryomorpha
—Styracosterna
—Hadrosauriformes
—Hadrosauroidea()
familyHadrosauridae
subfamilyLambeosaurinae
genusAmurosaurus
speciesriabinini

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.

†Amurosaurus riabinini Bolotsky and Kurzanov 1991
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Invalid names: Sahaliyania elunchunorum Godefroit et al. 2008 [synonym]
Diagnosis
ReferenceDiagnosis
P. Godefroit et al. 2011Prominent median process between basipterygoid processes; sagittal crest particularly elevated on the caudal part of the parietal and forming a high, triangular and deeply excavated triangular process on the occipital aspect of the skull; squamosals separated from each other by this crest along their whole height; caudal process of postorbital particularly elongated, narrow, and regularly very convex dorsally; prefrontal forming a good half of the width of the floor for supracranial crest; ulna and radius sigmoidal both in lateral and in cranial views.
P. Godefroit et al. 2011 (Sahaliyania elunchunorum)Lambeosaurine dinosaur characterised by the following autapomorphies: paroccipital processes long, very slender, with a slightly convex dorsal border and a slightly concave ventral border; lateral depressions on the dorsal surface of the frontal better developed than in other lambeosaurines, and not associated with a median doming of the bone; quadratojugal notch displaced ventrally; middle of the notch located well below the middle of the height of the quadrate; prepubic blade always more expanded dorsally than ventrally. Also differs from Charonosaurus, Olorotitan, Corythosaurus, and Parasaurolophus by the important ventral deflection of the rostral part of its dentary, which forms an angle of about 30 with the long axis of caudal part of the bone; differs from Amurosaurus by the symmetrical alar process on its basisphenoid, its frontals wider than long and by its well-developed maxillary shelf; differs from Charonosaurus and Parasaurolophus by the short rostral platform of its frontal; differs from Olorotitan by the rounded rostral process of its jugal, by the straight ventral margin of its maxilla, and by the longer preacetabular process of its ilium (ratio ilium length / preacetabular length = 2. 1) ; differs from Tsintaosaurus by the presence of a rostral platform on its frontal and by the median ramus of its squamosal lower than its paroccipital process.
Measurements
No measurements are available
Composition: hydroxyapatiteo
Entire body: yeso
Adult length: 10 to < 100o
Adult width: 1.0 to < 10o
Adult height: 1.0 to < 10o
Architecture: compact or denseo
Ontogeny: accretion, modification of partso
Grouping: gregariouso
Environment: terrestrialo
Locomotion: actively mobileo
Life habit: ground dwellingo
Diet: herbivoresubo
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2009-01-03 20:40:05
Modified: 2009-01-03 22:40:05
Source: subo = suborder, o = order
References: Benton 1983, Marsh 1875

Age range: Late/Upper Maastrichtian or 70.60000 to 66.00000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Maastrichtian72.1 - 66.0China (Heilongjiang) Sahaliyania elunchunorum (79034)
Late/Upper Maastrichtian70.6 - 66.0Russian Federation (Amur) Hadrosauridae indet. (type locality: 47029)