Middle Triassic ammonites from Sonora, México

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…...

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Bibliographic Details
Main Authors: John W. Estep, Spencer G. Lucas, Carlos M. González-León
Format: Article
Language:English
Published: Universidad Nacional Autónoma de México 2018-12-01
Series:Revista Mexicana de Ciencias Geológicas
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Online Access:https://rmcg.unam.mx/index.php/rmcg/article/view/1117
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