The mid-Cretaceous ammonites of the family Kossmaticeratidae from Japan. Part II. Descriptions of the species from Hokkaido, excluding the Shumarinai-Soeushinai area. (Studies of the Cretaceous Ammonites from Hokkaido - LXX). Palaeontological Society of Japan Special Papers, 33, December 10 1991: 21-102. 36 [Zoological Record Volume 137]