photo courtesy of FWS
The Hagerman area has five species of freshwater snails that are listed as threatened or endangered under the Endangered Species Act: the Snake River Physa (Physa natricaria), the Lanx (Lanx sp.)the Bliss Rapids snail (Taylorconcha serpenticola), the Utah valvata (Valvata utahensis), and the Idaho springsnail (Pyrgulopsis idahoensis).
Did You Know?
The best known discovery is the Hagerman Horse, Equus simplicidens is the official Idaho state fossil. The Hagerman Horse Quarry, a national natural landmark, is recognized as one of the most important sites in the world related to the fossil history of the horse.