|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
|A. M. Yates 2005||A theropod wi th the following autapomorphic characters: a large bilobed fossa surrounding a large lateral premaxillary foramen that is connected to the alveolar margin by a deep narrow channel; a deep, oblique notch on the lateral surface of the articular, separating the retroarticular process from the posterior margin of the glenoid; and particularly well-developed dorsal, tab-like processes on the articular, one on the medial side, just posterior to the opening of the chorda tympanic foramen and the other on the lateral side on the anterolateral margin of the fossa for the m. depressor mandibulae.|