. Contribución al conocimiento sobre algunos Ammonites del Perú. Paleontology; Ammonoidea. Fig. No. 4-Ejemplar joven mal conservado pero que enseña la evolución de la ornamentación de los flancos. Fig. No. 2b. - Sección del Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lissón, Carlos I. (Carlos Ismael), 1868-1947; Pan-American Scientific Congress (1st : 1908-1909 : Santiago, Chile). Lima, Tip. "El Peru"

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