Middle Triassic ammonites from Sonora, México

  • John W. Estep New Mexico Museum of Natural History and Science, New Mexico
  • Spencer G. Lucas New Mexico Museum of Natural History and Science, New Mexico
  • Carlos M. González-León Estación Regional del Noroeste, Instituto de Geología, Universidad Nacional Autónoma de México, Hermosillo, Sonora, México
Keywords: Middle Triassic, ammonites, Antimonio Formation, Sonora, Mexico.

Abstract

Middle Triassic ammonites identified as cf. Paracrochordiceras sp. and Paranevadites cf. P. furlongi (Smith) are documented from a 180 m thick interval of sandstone, siltstone and limestone in the lower part of the Antimonio Formation in the Sierra del Álamo Muerto, in northwestern Sonora, Mexico… in order to continue, download the full paper in PDF.

Published
2018-12-14
Issue
Vol 14 No 2 (1997)
Section
Regular Papers

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