THE APPENDICULAR SKELETON OFMAJUNGASAURUS CRENATISSIMUS(THEROPODA: ABELISAURIDAE) FROM THE LATE CRETACEOUS OF MADAGASCAR
| Autor: | Matthew T. Carrano |
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| Rok vydání: | 2007 |
| Předmět: | |
| Zdroj: | Journal of Vertebrate Paleontology. 27:163-179 |
| ISSN: | 1937-2809 0272-4634 |
| DOI: | 10.1671/0272-4634(2007)27[163:tasomc]2.0.co;2 |
| Popis: | The appendicular skeleton of the abelisaurid theropod Majungasaurus crenatissimus (Deperet, 1896) Lavocat, 1955 is described for the first time. The available materials include an incomplete pectoral girdle and forelimb, along with the ilium and a nearly complete hind limb. These materials display a number of ceratosaur, abelisauroid, and abelisaurid synapomorphies, supporting the phylogenetic placement of Majungasaurus based previously on cranial anatomy. As in Ceratosaurus and Carnotaurus, the scapular blade is relatively wide and has a pronounced dorsal lip over the glenoid. The humerus is short and bears a globular head, but is more slender than in Carnotaurus. The ilium has a preacetabular hook, a strong supraacetabular crest, a notched posterior margin, and peg-and-socket articulations with both the pubis and ischium. Hind limb elements are proportionally stocky, as in some other abelisaurids. The femur lacks a trochanteric shelf, the tibia has a greatly enlarged cnemial crest, and the fibu... |
| Databáze: | OpenAIRE |
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