Two ammonite species of Mortoniceras from the Yubari Mountains (Hokkaido) and their geological implications: (Studies of the Cretaceous ammonites from Hokkaido and Sakhalin-LXXXII)

Tatsuro Matsumoto
Fumihisa Kawabe
Yoshitaro Kawashita

Published in Paleontological Research, in 1998, in volume 2, pages 170-182

Date published:1998

BHL: 40355480
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