The Bear Gulch Limestone Collection

Worm

Soft-bodied worm

  • Name: Deuteronectanebos papillorum
  • System: Upper Carboniferous
  • Series: Namurian, Upper Chesterian
  • Collector: W. Melton and party

Conodontophage

Conodont

  • Name: Typhloesus wellsi
  • System: Upper Carboniferous
  • Series: Namurian, Upper Chesterian
  • Collector: W. Melton and party

Coelacanth

Coelocanth fish

  • Name: Allenypterus montanensis
  • System: Upper Carboniferous
  • Series: Namurian, Upper Chesterian
  • Collector: W. Melton and party

Shrimp

Shrimp

  • Name: Tyrannophontes acanthocerus
  • System: Upper Carboniferous
  • Series: Namurian, Upper Chesterian
  • Collector: W. Melton and party

Starfish

Starfish

  • Name: Lepidastarella montanensis
  • System: Upper Carboniferous
  • Series: Namurian, Upper Chesterian
  • Collector: W. Melton and party

Bear Gulch Limestone Fauna (Mississippian)

This Carboniferous (Mississippian) deposit in central Montana contains amazing examples of fossil preservation including soft-part preservation of plant and animal tissues/organs. The biota includes the world’s most divers Carboniferous fish fauna, soft algae and plants, brachiopods, bivalves, soft-bodied worms, shrimp-like decapods, complete starfish, and conodont-eating organisms. Some of this diverse fossil collection is illustrated here.

Back to Research Collections