Orionides
| Orionides Temporal range: Middle Jurassic–Present, 175.6–0 Ma Possible Early Jurassic record |
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| Skeleton of Piatnitzkysaurus floresi | |
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| Skeleton of Allosaurus fragilis | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Clade: | Dinosauria |
| Order: | Saurischia |
| Suborder: | Theropoda |
| Clade: | Tetanurae |
| Clade: |
Orionides Carrano, Benson & Sampson, 2012 |
| Clades | |
Orionides is a clade of tetanuran theropod dinosaurs from the Middle Jurassic to the Present. The clade includes most theropod dinosaurs, including birds.
Although many phylogenetic analyses found basal tetanurans that were outside both Megalosauroidea and Avetheropoda, the core dichotomy was named only in 2012. Carrano, Benson and Sampson (2012) named that clade Orionides, and defined it as the node comprising Megalosauroidea, Avetheropoda, their most recent common ancestor, and all its descendants. In 2015, Hendrickx, Hartman and Mateus clarified this definition, specifying it as the most recent common ancestor of Allosaurus fragilis, Megalosaurus bucklandii, and Passer domesticus, and all its descendants. The cladogram presented below follows a phylogenetic analysis published by Zanno and Makovicky in 2013.
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