Towards a standard ammonite zonation for the Aptian (Lower Cretaceous) of northern Mexico
Detailed data on twenty-seven species of ammonites identified in three stratigraphic sections ofnorthern Mexico, allow further refinement of the Aptian ammonite biozonations of previous authors. Fourformal ammonite biozones are proposed. Dufrenoyia justinae Taxon-Range-Zone for the uppermost partof...
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| Publicat a: | Revista Mexicana de Ciencias Geológicas |
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| Autors principals: | , |
| Format: | Artigo |
| Idioma: | Inglês |
| Publicat: |
Universidad Nacional Autónoma de México
2005
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| Matèries: | |
| Accés en línia: | https://www.redalyc.org/articulo.oa?id=57222105 |
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