Bipedal crurotarsan, harbinger of doom

Well smother me in custard and call me Michelle Thorne, a remarkable thing has happened

Summary
Purported theropod remains from the Ghost Ranch quarry are actually from a bipedal crurotarsan, Effigia okeeffeae.

Mentioned species

 * Dilophosaurus wetherilli
 * Effigia okeeffeae
 * Shuvosaurus inexpectatus