Ce livre est une étude approfondie des ammonites et autres fossiles jurassiques de la région de Crussol en Ardèche. Les auteurs décrivent en détail les spécimens découverts et fournissent des interprétations fascinantes sur les conditions géologiques dans lesquelles les animaux ont vécu. Ce livre est une ressource précieuse pour les paléontologues et les étudiants en géologie. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.