[D] Nanningosaurus dashiensis [Su] [sG] [T]
Describer
Mo, Zhao, Wang & Xu 2007
Time
Cretaceous Late
Classification
Ornithischia Ornithopoda Hadrosauridae Lambeosaurinae
Diet
Herbivore
Fossilsite
Nadu Formation, Dashi village, suburb of Nanning City, Guangxi Zhuang Autonomous Region, China
Info
Genus - Typespecies - Skull
Etymology
Nanning, after the fossil-producing Nanning City; “dashi”, Pinyin, means “big stone”, after the name of the village where the specimens were excavated.
Holotype
NHMG8142, disarticulated partial skeleton including relatively complete right and left maxillae, left dentary, left squamosal, lower portion of right quadrate, incomplete basioccipital, one isolated dentary tooth, one cervical vertebra, incomplete left scapula, incomplete left and right humeri, relatively complete left ischium, complete left femur and both tibiae.
Paratype
NHMG8143, relatively complete right maxilla.
Diagnosis
Nanningosaurus dashiensis is distinguished from all other hadrosaurids by a unique combination of derived and primitive features: tall and sharply peaked dorsal process of the maxilla with reduced process of the jugal and a distinct lacrimal facet, gracile humerus with low, rounded deltopectoral crest, mandibular condyle of the quadrate transversly broad with weakly developed paraquadrate notch, dentary tooth with sinuous median carina and subsidiary ridge, relatively few tooth positions, and ischial shaft straight along most of its distance, but to curve dorsally and expand at the distal end before the ischial foot begins.
Mo, Zhao, Wang & Xu 2007
Time
Cretaceous Late
Classification
Ornithischia Ornithopoda Hadrosauridae Lambeosaurinae
Diet
Herbivore
Fossilsite
Nadu Formation, Dashi village, suburb of Nanning City, Guangxi Zhuang Autonomous Region, China
Info
Genus - Typespecies - Skull
Etymology
Nanning, after the fossil-producing Nanning City; “dashi”, Pinyin, means “big stone”, after the name of the village where the specimens were excavated.
Holotype
NHMG8142, disarticulated partial skeleton including relatively complete right and left maxillae, left dentary, left squamosal, lower portion of right quadrate, incomplete basioccipital, one isolated dentary tooth, one cervical vertebra, incomplete left scapula, incomplete left and right humeri, relatively complete left ischium, complete left femur and both tibiae.
Paratype
NHMG8143, relatively complete right maxilla.
Diagnosis
Nanningosaurus dashiensis is distinguished from all other hadrosaurids by a unique combination of derived and primitive features: tall and sharply peaked dorsal process of the maxilla with reduced process of the jugal and a distinct lacrimal facet, gracile humerus with low, rounded deltopectoral crest, mandibular condyle of the quadrate transversly broad with weakly developed paraquadrate notch, dentary tooth with sinuous median carina and subsidiary ridge, relatively few tooth positions, and ischial shaft straight along most of its distance, but to curve dorsally and expand at the distal end before the ischial foot begins.