Abstract: In the spring of 1994，a partial iguanodonüan skeleton (reconstructed length about 4.5 m) was collected from the perley muddy siltstone of the Sangping Formation Of Maguan Basin, southeastem Henan Province, China. Thousands Of dinosaur eggs also have been discovered and collected at this site. This is the first dinosaur skeleton found in fris area. A new genus and species of Iguanodontia was erected and described based on this skeleton in this paper.

摘要： 记述了禽龙亚目(Iguanodontia)一个新属种—诸葛南阳龙(Nanyangosaurus zhugeii)。标本产于河南内乡夏馆镇桑坪组的紫红色泥质粉砂岩中。它的自近裔特征包括:第二掌骨超过第三掌骨和第四掌骨长度的90%;第四掌骨远端异常粗壮;指节IV-1长度小于远端横向宽度;第二跖骨近端腹背向长度大于第三跖骨。系统发育分析表明，南阳龙代表亲缘关系与鸭嘴龙超科最为接近的一类鸟脚类恐龙。诸葛南阳龙的发现支持了夏馆盆地红层为早白垩世沉积的观点。