Description, des, mollusques, fossiles, qui, se, trouvent, dans, les, grès, verts, des, environs, de, Genève, Genève, impr, de, Jules-Guillaume, Fick, 1847-1853, Switzerland, Geneva, paleontology, Cretaceous, mollusk, fossil, fossil, stories, A detailed illustration showcasing three distinct types of shellfish. The first shell, labeled 'Fig. 1. Lima montana,' is characterized by its smooth, rounded shape and fine ridges. The second shell, 'Fig. 2. Hinnites Favrinus,' features a more elongated form with a pronounced curve and intricate surface texture. The third shell, depicted at the bottom, is broader and exhibits a series of deep ridges and valleys, highlighting its unique geological features. Each shell is meticulously rendered, emphasizing the natural variations in shape and texture, and providing insight into their biological classifications.