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New Mexico Earth Matters — Back-issues


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Alamosaurus—The Last of the Super-Giant Dinosaurs from New Mexico
Thomas E. Williamson

In June 1921, U.S. Geological Survey geologist John B. Reeside Jr. discovered fossils from Barrel Springs Arroyo, near Ojo Alamo in the San Juan Basin of northwestern New Mexico, that would radically change our understanding of sauropod dinosaurs. Sauropod dinosaurs are among the most iconic of all dinosaurs and include the largest dinosaurs of all time, such as Brachiosaurus, Alamosaurus, and Argentinosaurus—the largest vertebrate animals ever to walk the earth. More than 100 years after the discovery of Alamosaurus, scientists are continuing to learn more about the biology and evolutionary history of Alamosaurus and of all sauropod dinosaurs. In the past few decades, our knowledge of sauropod dinosaurs has expanded immensely, and Alamosaurus has played a critical role in this new understanding.

Also in this issue:

  • Bureau News
    • Mike Timmons Selected as Director and State Geologist
    • Ginger McLemore in Mining Hall of Fame
    • Workshop to Advance Geothermal Energy
    • Aquifer Mapping, Water Education, and Hydrologic Data
    • Climate/Water Bulletin Wins National Award
    • 2024 Calendar Now Available