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Nipponosaurus

Reptilia - Hadrosauridae

Synonymy list
YearName and author
1936Nipponosaurus Nagao p. 187
1938Nipponosaurus Nagao pp. 312-313
1956Nipponosaurus Romer p. 630
1958Niponosaurus Huene p. 206
1959Nipponosaurus Huene p. 122
1964Nipponosaurus Kuhn p. 23
1964Nipponosaurus Tatarinov p. 567
1968Nipponosaurus Rozhdestvensky
1977Nipponosaurus Rozhdestvensky p. 113
1981Nipponosaurus Maryanska and Osmólska p. 8
1983Nipponosaurus Weishampel and Weishampel p. 44
1988Nipponosaurus Carroll
1990Nipponosaurus Chapman and Brett-Surman p. 177
1990Nipponosaurus Weishampel and Horner p. 558
1994Nipponosaurus Matsukawa and Obata p. 101
2004Nipponosaurus Horner et al. p. 442
2004Nipponosaurus Suzuki et al. p. 146
2006Nipponosaurus Lund and Gates p. 266
2007Nipponosaurus Evans and Reisz pp. 386-387 fig. 9
2010Nipponosaurus Cruzado-Caballero et al. p. 1510 fig. 4
2017Nipponosaurus Cruzado-Caballero and Powell p. 12 fig. 13

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
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()
Ornithischia()
Neornithischia()
Ornithopoda()
Iguanodontia()
Dryomorpha
Ankylopollexia
Styracosterna
Hadrosauriformes
Hadrosauroidea()
familyHadrosauridae
subfamilyLambeosaurinaeParks 1923
tribeCorythosauriniGlut 1997
genusNipponosaurus

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
T. Nagao 1936Generic and Specific Characters: A small trachodont dinosaur with the skull deep, rather broad, short, and probably steep in front. The cranium squarish in outline in lateral view. The frontal region with a low swelling. The "crest" presumably represented by an incipient dome-like prominence. Vertebrae with large neural canals. Cervical centra strongly opisthocoelous, with very convex anterior articular surfaces. Dorsal centra much reduced in size, moderately opisthocoelous, and almost flat anteriorly, with well developed and high neural spines. Caudal centra slightly amphicoelous with well developed chevrons. Scapula slender and straight. Ischium with a well developed foot-like expansion which is distinctly excavated externally. Femur, tibia and fibula of nearly equal length. Metatarsals rather long and massive.