Trinisaura
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Trinisaura Temporal range: Late Cretaceous, 80–66 Ma |
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Clade: | Dinosauria |
| Order: | †Ornithischia |
| Suborder: | †Ornithopoda |
| Clade: | †Elasmaria |
| Genus: |
†Trinisaura Coria et al., 2013 |
| Type species | |
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†Trinisaura santamartaensis Coria et al., 2013 |
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Trinisaura is an extinct genus of ornithopod dinosaur known from the lower levels of the Late Cretaceous Snow Hill Island Formation (lower Campanian stage) of James Ross Island, Antarctica. It contains a single species, Trinisaura santamartaensis.
The species was in 2013 named by Rodolfo Aníbal Coria e.a. The generic name honours the geologist Trinidad Diaz. The specific name refers to the Santa Marta Cove site where the specimen was in 2008 found by Coria and Juan José Moly. That same year, the find was reported in the scientific literature.
The holotype, MLP-III-1-1, consists of a partial skeleton lacking the skull, of a subadult individual about 1.5 metres (4.9 ft) in length.
The cladogram below follows Coria et al., 2013 phylogenetic analysis. Trinisaura is found to be an ornithopod, however the inclusion of Thescelosaurus neglectus is necessary to determine whether it is a basal iguanodont.
Trinisaura santamartaensis
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