Table 2. Reconstructed muscle originations and insertions for the ornithomimosaurs studied here (see text for muscle abbreviations).

Muscle	Origination	Insertion
AMEM	Posterior portion of supratemporal fossa	Posterior, mediodorsal edge of mandible
AMEP	Medial portion of supratemporal fossa	Mandibular margin anterior to AMEM insertion
AMES	Medial edge of supratemporal bar	Dorsolateral edge of mandible
AMP	Lateral surface of quadrate	Posterior medial margin of mandibular fossa
PSTs	Rostromedial portion of temporal fossa	Rostromedial mandibular fossa
PTd	Dorsal surface of rostral portion of pterygoid and palatine	Medial surface of articular
PTv	Caudoventral surface of pterygoid	Lateral surface of articular and angular