Pleistocene The lower boundary of the Pleistocene Series is formally defined magnetostratigraphically as the base of the Matuyama (C2r) chronozone, isotopic stage 103. Above this point there are notable extinctions of the calcareous nanofossils: "Discoaster pentaradiatus" and "Discoaster surculus". The Pleistocene covers the recent period of repeated glaciations. The name Plio-Pleistocene has, in the past, been used to mean the last ice age. The revised definition of the Quaternary, by pushing back the start date of the Pleistocene to 2.58 Ma, results in the inclusion of all the recent repeated glaciations within the Pleistocene. The modern continents were essentially at their
Skinwalkers (2002 film) Skinwalkers (2002 film) Skinwalkers is a 2002 mystery television film based on the novel of the same name by Tony Hillerman, one of his series of mysteries set against contemporary Navajo life in the Southwest. It features an all-Native American cast, with Adam Beach and Wes Studi playing officers Jim Chee and Joe Leaphorn. It was produced as part of the PBS "Mystery!" series, filmed on the Navajo reservation and directed by Chris Eyre. The film was the highest rated program of 2002 on PBS. It is the first of three television films based on the same series of books,