Original paper

Late Triassic (Norian) conodonts from Peru

Orchard, Michael

Abstract

A newly obtained Late Triassic conodont collection from the lower Pucará Group of central Peru is characterized by Epigondolella mosheri Kozur & Mostler, within which new morphotypes A and B are distinguished. The specimens from Peru are referred to morphotype B, the North American occurrences of which suggest that the Peru fauna is referable to the Upper bidentata Zone of the Late Norian, which correlates with the Amoenum Zone of the ammonoid standard. The only previously described Triassic conodonts from Peru are also Late Norian but may represent the slightly older Lower bidentata Zone.

Keywords

Conodonts • Triassic • Peru • taxonomy • biochronology