CONODONT BIOSTRATIGRAPHY OF THE "OCKERKALK" (SILURIAN) FROM SOUTHEASTERN SARDINIA

  • SEBASTIANO BARCA
  • CARLO CORRADINI
  • ANNALISA FERRETTI
  • RENATA OLIVIERI
  • ENRICO SERPAGLI
Keywords: Biostratigraphy, Conodonts, Ockerkalk, Silurian, Southeastern Sardinia.

Abstract

Twenty-two conodont species are recognized in the Ockerkalk exposed in the Silius area (Gerrei, southeastern Sardinia). The fauna, which is the first reported from this peculiar facies, indicates a Ludlow and e.-m. Pridoli age for this limestone. Three conodont biozones (latialata, snajdri and crispa) are reported for the first time in Sardinia and, the Pelekysgnathus index horizon is newly recovered in Europe.
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