| 概要 |
Representatives of the family Phylloceratidae occur rather sporadically in the Upper Cretaceous of the West Coast of North America. In California I have recognized examples of the two genera,Neophyllo...ceras and Phyllopachyceras. As the last genus is represented by imperfectly preserved specimens, I exclude here its description. Partschiceras (?) japonicum(MATSUMOTO), which has recently been discovered in the probable Cenomanian of Alaska (MATSUMOTO, 1959a, P.52, pl.12, figs.1a-c, 2a, b, 3a-c；text-fig.2), has not yet been confirmed in California.続きを見る
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Mendeley出力
sp01_p001