Thompson M. L.; Miller A. K. (1949). Permian Fusulinids and Cephalopods from the Vicinity of the Maracaibo Basin in Northern South America. Journal of Paleontology. 23(1): 1-24.

279224

Thompson M. L.; Miller A. K.

1949

23(1): 1-24

Publication

A survey of the literature indicates that fusulinids are of widespread occurrence in South America, and that they are known to range in age there from at least Middle Pennsylvanian to Upper Permian. Eleven species of these foraminifers are illustrated and described from northern Colombia and northwestern Venezuela. They are referable to Staffella, Schubertella, Pseudoschwagerina, Schwagerina?, Parafusulina, and possibly Polydiexodina, and they indicate that the zones of Pseudoschwagerina (Wolfcampian), Parafusulina (Leonardian and lower Guadalupian), and possibly Polydiexodina (upper Guadalupian) are represented there. The only Permian cephalopods illustrated and/or described from South America are representatives of three genera of nautiloids (Mooreoceras, Pseudometacoceras?, and Domatoceras) and two of ammonoids (Medlicottia and Perrinites) from the Leonardian of northern Colombia.

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