"Turritella"の進化による広域対比の可能性 : 軟体動物化石の地質年代学的一側面

概要

論文の詳細を見る
Detail examination of the development of the spiral sculpture, the taxonomic criteria, in the Turritellids of the world, particularly of the fossil series, reveals that regardless of species, there is universally a remarkable and significant increase in secondary and tertiary spiral sculptures at and near the boundary between the different chronostratigraphic units. This change has been recognized in Japan, North America, Europe, Australia, and New Zealand, thus pointing to that correlation is rendered possible regardless of the biospecies. An analogous features is observed in the other bioseries of shell-bearing molluscs.
日本地質学会の論文
1973-03-31