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Contributions, December 1996, 31.1

In this issue:

  • Sauropod dinosaurs of the Morrison Formation (Upper Jurassic), Black Hills, South Dakota and Wyoming
  • Jumpoff Joe Formation, a new Mississippian formation near Springdale, Washington
  • The giant mustelid Megalictis from the early Miocene carnivore dens at Agate Fossil Beds National Monument, Nebraska; earliest evidence of dimorphism in New World Mustelidae (Carnivora, Mammalia)
  • Geomyoid rodents (Mammalia) from the Bijou Hills local fauna (Barstovian), South Dakota
  • Dolomitization of the "C" zone, Red River Formation (Upper Ordovician) in deep core, Williston Basin, Richland County, eastern Montana