Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Steidle Collection Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University
Courtesy, Earth and Mineral Sciences Museum, The Pennsylvania State University