Sigilmassasaurus
Spinosaurid theropod dinosaur genus from Cretaceous Period / From Wikipedia, the free encyclopedia
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Sigilmassasaurus (/siːdʒɪlˌmɑːsəˈsɔːrəs/ see-jil-MAH-sə-SOR-əs; "Sijilmassa lizard") is a controversial genus of spinosaurid dinosaur that lived approximately 100 to 94 million years ago during the Late Cretaceous Period in what is now northern Africa. Named in 1996 by Canadian paleontologist Dale Russell, it contains a single species, Sigilmassasaurus brevicollis. The identity of the genus has been debated by scientists, with some considering its fossils to represent material from the closely related species Spinosaurus aegyptiacus, while others have classified it as a separate taxon, forming the clade Spinosaurini with Spinosaurus as its sister taxon.
Sigilmassasaurus | |
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Middle neck vertebra, specimen CMN 50791 | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Clade: | Dinosauria |
Clade: | Saurischia |
Clade: | Theropoda |
Family: | †Spinosauridae |
Tribe: | †Spinosaurini |
Genus: | †Sigilmassasaurus Russell 1996 |
Species: | †S. brevicollis |
Binomial name | |
†Sigilmassasaurus brevicollis Russell 1996 | |
Synonyms | |
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Sigilmassasaurus was a moderately-built, ground-dwelling, bipedal carnivore, like most other theropods. It may have had strong neck musculature as evidenced by the morphology of its vertebrae (backbones). Sigilmassasaurus may have had semiaquatic habits and a partially piscivorous diet. It coexisted with other large theropods in the Kem Kem Group.