Four tsunami indicators needed in the Tanis site, Hell Creek Formation, North Dakota

Abstract

It has been proposed that (1) the Tanis site, Hell Creek Formation of North Dakota, has the fossil remains of a tsunami and that (2) this tsunami was caused by the Chicxulub asteroid impact and the extinction of non-avian dinosaurs. If this interpretation is correct, Tanis should present the typical characteristics of tsunami sites. Here I list the characteristics that Tanis should have if it is a tsunami site.