Bighorn sheep ecology. B. Geological Research 1. Pliocene mollusks, ostracods, diatoms, pollen, and vertebrate fossils range from common to prolific. They have been studied in only a few places, and no extensive collections have been made. Collection and identification of these assemblages should properly be a long-range study involving specialists in each field.
Material is well preserved.
The data would be useful not only in interpreting climate and environment during Pliocene time but also in charting the evolution of plant and animal life in this area during the last 10 million years and in determining how it was affected by the rise of the Teton Range and the foundering of Jackson Hole. Late Tertiary volcanism. Geochemical and petrographic studies should be made of Miocene, Pliocene, and Pleistocene pyroclastic and igneous rocks in the Teton Park area. They are mafic and derived from local vents in and adjacent to Grand Teton National Park. The Pliocene rocks are felsic in composition, are about 7,000 feet thick, but represent a completely different volcanic cycle.