Abstract
AbstractThis contribution deals with the record of the Ordovician genusPygodusin Cuyania, Argentina. Several classical sections have been sampled for conodonts in the Precordillera and the San Rafael Block, involving diverse sedimentary deposits: coarse clastic rocks with carbonate cement, carbonate beds intercalated in fine clastic deposits, green shale, and black carbonate deposits. The recovered species of this genus arePygodus lunnensisZhang,P. anitaeBergström,P. serra(Hadding),P. protoanserinusZhang andP. anserinusLamont & Lindström. These key conodonts indicate middle to upper Darriwilian – lower Sandbian age for the bearing strata. The speciesP. protoanserinusis recorded for the first time from the Precordillera. Detailed observations were made on specimens ofP. anitae,P. lunnensisandP. protoanserinus; the two last species are described for the first time from Cuyania.
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