Paleontology

Un certain nombre d'ossements d'oiseaux, recueillis dans les gisements de phosphorite du Quercy, ont déjà été examinés. Ce livre regarde ces os plus loin.

This publication contains two articles about the bones of dinosaurs that were published in the Geological series of the Field Columbian Museum. 

The present volume is the first of a series of monographs designed to make known to science the extinct vertebrate life of North America.