[Vendu] Association Didymoceras et Solenoceras

Didymoceras Nebrascense (Meek and Hayden, 1856a).

Solenoceras bearpawense (Kennedy, 2000)

Campanien superieur

Pierre Shale formation

South Dakota

Didymoceras - diametre: 8 cm

Solenoceras – longueur: 7.5 cm