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山东莱阳鸭嘴龙一新种

1976年 第14卷 第3期: 166~168

发表日期:2009-05-05李志恒来源:放大 缩小

编辑:甄朔南

摘要:In the autumn of 1959, a collection of hadrosaurian remains was obtained by a field team from the Natural History Museum of Beijing from the late Cretaceous beds in Laiyang county of Shandong province. Most of these fossils belong to Tsintaosaurus, but a well preserved sacrum and an unperfect right ilium represent a new species of Tanius, for which the name Tanius laiyangensis is proposed. The diagnosis of the new form may be given below:
    The sacrum is composed of nine co-ossified vertebrae with complete more blade like neural spines. There is apronounced longitudinal groove cutting the ventral aspect of central 6-9. The diapophyses are well developed, nearly horizontal,and the last 1-2 are longer. The acetabulum bear is rather robust than other duck-billed dinosaurs known from the fauna of Shandong. The iliac process is the smaller. The postacetabular portion is longer than Tanius sinensis and Tsintaosaurus. The general form of the ilium somewhat resembles that of Tanius chingkankouensis.

卷期:14卷 03期

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