| 词条 | Somphospondyli |
| 释义 |
| name = Somphospondylans | fossil_range = Late Jurassic to Late Cretaceous, {{fossil range|155|66}} | image = Skeleton of Qiaowanlong kangxii.JPG | image_caption = Skeleton of Qiaowanlong | display_parents = 2 | taxon = Somphospondyli | authority = Wilson & Sereno, 1998 | subdivision_ranks = Genera | subdivision =
}} Somphospondylans are an extinct clade of titanosauriform sauropods that lived throughout the world from the Late Jurassic through the Cretaceous in North America,South America,Europe,Asia and Australia. The group can be defined as "the most inclusive clade that includes Saltasaurus loricatus but excludes Brachiosaurus altithorax". Features found as diagnostic of this clade by Mannion et al. (2013) include the possession of at least 15 cervical vertebrae; a bevelled radius bone end; sacral vertebrae with camellate internal texture; convex posterior articular surfaces of middle to posterior caudal vertebrae; biconvex distal caudal vertebrae; humerus anterolateral corner "squared"; among multiple others. [1]References1. ^{{cite journal|last=Mannion|first=P.D.|last2=Upchurch|first2=P.|last3=Barnes|first3=R.N.|last4=Mateus|first4=O.|date=2013|title=Osteology of the Late Jurassic Portuguese sauropod dinosaur Lusotitan atalaiensis (Macronaria) and the evolutionary history of basal titanosauriforms|journal=Zoological Journal of the Linnean Society|volume=168|pages=98–206|doi=10.1111/zoj.12029}} {{Portal bar|Dinosaurs|Paleontology|Jurassic|Cretaceous}}{{Macronaria}}{{Taxonbar|from=Q4049742}} 5 : Macronarians|Jurassic dinosaurs|Late Cretaceous dinosaurs|Kimmeridgian first appearances|Maastrichtian extinctions |
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