Helminthoraphe flexuosa, Multina minima, Nereites irregularis, Ophiomorpha annulata, Ophiomorpha rudis, Paleodictyon strozzii, Planolites isp.
The trace-fossil assemblage of the Ezkaba Sandstone Formation, the older unit considered in this work, is characteristic of the deep-sea Nereites ichnofacies, as revealed by the presence of graphoglyptids (Uchman and Wetzel, 2011; Wetzel and Uchman, 2012).
vertebralis), supporting the differentiation of the Ophiomorpha rudis ichnosubfacies of the Nereites ichnofacies.
and Helminthorhaphe flexuosa) suggests the Paleodictyon ichnosubfacies of the Nereites ichnofacies or a mixed Paleodictyon-Ophiomorpha rudis ichnosubfacies ichnoassemblage.
The trace-fossil assemblage is characteristic of the deep-sea Nereites ichnofacies.
2009): The Ophiomorpha rudis ichnosubfacies of the Nereites ichnofacies: characteristics and constraints.
Four groups were originally identified (the Skolithos, Cruziana, Zoophycos, and Nereites ichnofacies--following Bromley 1996, we do not italicize ichnofacies).
However, in the marine realm, Bromley and Asgaard (1991) considered the Nereites ichnofacies to comprise a Zoophycos ichnofacies, and one or more as yet unnamed graphoglyptid ichnofacies.
Buatois and Mangano (1998) considered it the nonmarine equivalent of the Cruziana-, Zoophycos-, and Nereites ichnofacies in its environmental context, whereas Bromley (1996) considered it only equivalent to the Nereites ichnofacies.