Platanoid leaves from Cenomanian to Turonian Mikasa Formation, northern Japan and their mode of occurrence

Abstract

金沢大学理工研究域自然システム学系Ettingshausenia cuneifolia is reported from the Cenomanian to Turonian Mikasa Formation of central Hokkaido. These leaves occur exclusively in carbonaceous mudstone deposited in either lagoon or marsh. Based on their mode of occurrence, these remnants may have been trapped in the sediments without long prior transport (parautochthonous). © by the Palaeontological Society of Japan