Sobre la posición estratigráfica de Perisphinctes wartae Bukowski y el desarrollo de la Subbiozona Rotoides (Biozona Transversarium, Oxfordiense Medio) en la Cordillera Ibérica Nororiental.

• Autores: Guillermo Meléndez Hevia, B. Fontana
• Localización: Geogaceta, ISSN 0213-683X, Nº. 10, 1991, págs. 38-42
• Idioma: español
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• Resumen

  • The new, recently defined biostratigraphic unit Rotoides Subzone has been widely recognised throughout the Iberian Chain (E. Spain) and characterized by means of successive representatives of Oxfordian ammonite genus Perisphinctes. The classically misinterpreted species Perisphinctes wartae BUI-OWSI-I has been morphologically characterized and re-placed at his right stratigraphic position, within this subzone. Another classical y misplaced species, Perisphinctes rotoides Ronchadze is also localized, at the top of subzone. The possible subdivision of Rotoides Subzone into biohorizons is discussed