page_title: Yunganglong
section_title: Phylogeny
hierarchical_section_title: Yunganglong / Phylogeny
caption_attribution_description: Tibia and astragalus of Yunganglong datongensis (SXMG V 00001). (A–F)-Proximal portion of right tibia in (A) media, (B) cranial, (C) lateral, (D) caudal, (E) proximal, and (F) distal views. (G–K)-Distal portion of left tibia with astragalus in (G) cranial, (H) caudal, (I) medial, (J) lateral, and (K) distal views. Abbreviations: as, astragalus; cc, cnemial crest; cf, concavity for articulation of distal end of fibula; cmc, caudomedial condyle; lc, lateral condyle; lm, lateral malleolus; mm, medial malleolus. Scale bar = 10 cm.
context_page_description: Yunganglong is an extinct genus of basal hadrosauroid dinosaur known from the early Late Cretaceous lower Zhumapu Formation of Zuoyun County, Shanxi Province of northeastern China. It contains a single species, Yunganglong datongensis.
context_section_description: Based on its morphology Wang et al. (2013) showed that Yunganglong was more derived than the basal hadrosauriform Iguanodon but more primitive than the hadrosaurids, such as the well known Edmontosaurus and Corythosaurus. To further explore the phylogenetic position of Y. datongensis among hadrosauriforms, Wang et al. (2013) used a modified version of the data matrix first presented by Sues and Averianov (2009). Nanyangosaurus, Shuangmiaosaurus, and Yunganglong were added to the matrix, and two character codings were modified. In the strict consensus tree, Yunganglong was recovered as more advanced than Probactrosaurus, in an unresolved polytomy with Jintasaurus, Protohadros, Nanyangosaurus, Shuangmiaosaurus, Levnesovia, Bactrosaurus, Tanius, Telmatosaurus and the clade formed by Aralosaurus and Hadrosauridae. The 50% majority rule tree resolved its phylogenetic position further, as shown in the cladogram below.
caption: Tibia and astragalus
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