UPCHURCH, PAUL, BARRETT, PAUL M., XIJIN, ZHAO, XING, XU (2007) A re-evaluation of Chinshakiangosaurus chunghoensis Ye vide Dong 1992 (Dinosauria, Sauropodomorpha): implications for cranial evolution in basal sauropod dinosaurs. Geological Magazine, 144 (2) 247-262 doi:10.1017/s0016756806003062
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | A re-evaluation of Chinshakiangosaurus chunghoensis Ye vide Dong 1992 (Dinosauria, Sauropodomorpha): implications for cranial evolution in basal sauropod dinosaurs | ||
| Journal | Geological Magazine | ||
| Authors | UPCHURCH, PAUL | Author | |
| BARRETT, PAUL M. | Author | ||
| XIJIN, ZHAO | Author | ||
| XING, XU | Author | ||
| Year | 2007 (March) | Volume | 144 |
| Issue | 2 | ||
| Publisher | Cambridge University Press (CUP) | ||
| DOI | doi:10.1017/s0016756806003062Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 260023 | Long-form Identifier | mindat:1:5:260023:3 |
| GUID | 0 | ||
| Full Reference | UPCHURCH, PAUL, BARRETT, PAUL M., XIJIN, ZHAO, XING, XU (2007) A re-evaluation of Chinshakiangosaurus chunghoensis Ye vide Dong 1992 (Dinosauria, Sauropodomorpha): implications for cranial evolution in basal sauropod dinosaurs. Geological Magazine, 144 (2) 247-262 doi:10.1017/s0016756806003062 | ||
| Plain Text | UPCHURCH, PAUL, BARRETT, PAUL M., XIJIN, ZHAO, XING, XU (2007) A re-evaluation of Chinshakiangosaurus chunghoensis Ye vide Dong 1992 (Dinosauria, Sauropodomorpha): implications for cranial evolution in basal sauropod dinosaurs. Geological Magazine, 144 (2) 247-262 doi:10.1017/s0016756806003062 | ||
| In | (2007, March) Geological Magazine Vol. 144 (2) Cambridge University Press (CUP) | ||
| Abstract/Notes | Re-description of the left dentary of Chinshakiangosaurus chunghoensis reveals that it possesses an unusual combination of ‘prosauropod’ and ‘sauropod’ character states. Cladistic analysis places Chinshakiangosaurus as one of the most basal sauropods known currently. Mapping of dentary and dental characters onto the most parsimonious topologies yields insights into the sequence of acquisition of a number of feeding-related characters. For example, it seems that basal sauropodomorphs (traditional prosauropod taxa) possessed a fleshy cheek that attached to the mandible along a marked ridge, and that the same structure was present in the most basal sauropods. The early sauropod skull developed a lateral plate that reinforced the bases of the tooth crowns labially, and had wrinkled tooth enamel and a concavity on the mesial portion of the lingual part of each crown, while retaining a fleshy cheek and a relatively weak symphysis. More advanced sauropods (eusauropods) lost the cheek, perhaps in order to increase the gape of the jaws in response to a change in feeding style that involved collection of larger quantities of poor quality foliage. | ||
See Also
These are possibly similar items as determined by title/reference text matching only.
