Resumen

BOGAN, Sergio  y  AGNOLIN, Federico L.. First fossil record for the family Trichomycteridae (Teleostei: Siluriformes; Pliocene) in the Monte Hermoso Formation, Argentina. Rev. Mus. Argent. Cienc. Nat. [online]. 2009, vol.11, n.2, pp.193-198. ISSN 1853-0400.

Some fossil remains referable to the siluriform family Trichomycteridae are described in this paper. These specimens exhibit a combination of characters that allow to include them within the subfamily Trichomycterinae. These elements consist on an opercular and interopercular of the same individual, collected in Lower-Middle Pliocene beds of the Monte Hermoso Formation, at the Farola de Monte Hermoso locality, Buenos Aires province, Argentina. This record constitutes the first fossil remains reported for the family, and one of the few paleoichthyological records for the Monte Hermoso Formation.

Palabras clave : Siluriformes; Trichomycteridae; Pliocene; Monte Hermoso Formation; Buenos Aires; Argentina.

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