We describe here the early Spathian (Early Triassic) Paris Biota decapod fauna from the western USA basin. This fauna contains two taxa of Aegeridae (Dendobranchiata), namely Anisaeger longirostrus n.
Matrix of genus occurrences for the GFRI and closeness index analysis of Bartolini-Lucenti et al. "The Montopoli site, a reference Local Fauna in the Pliocene and Pleistocene European Large Mammals Bi
