File:Protoavis discovery1.png

Summary
Protoavis skeletons were exposed while removing the overburden by a jackhammer. The blade of the jackhammer points to the approximate location of the two skeletons that were discovered.

Left, Bryan J. Small, right, J. Brucc Moring

From: Chatterjee, S. (1991). "Cranial anatomy and relationships of a new Triassic bird from Texas." Philosophical Transactions of the Royal Society B: Biological Sciences, 332: 277-342.