Some Heteromorph Ammonites from the Cretaceous of Hokkaido
Matsumoto Tatsuro
Some Heteromorph Ammonites from the Cretaceous of Hokkaido - Kyushu University, Japan - pp 305-361; 29*22
H6.428/N77/B15707
Some Heteromorph Ammonites from the Cretaceous of Hokkaido - Kyushu University, Japan - pp 305-361; 29*22
H6.428/N77/B15707