149. The First Find of Mesophyllum-from the Tertiary of Japan

Abstract

This note is devoted to the description of a new species of Mesophyllum recently discovered in a limestone of the Misaka Series exposed on the stream bed of Kayanuma-zawa at about 100m north of its function with the Nakatu-gawa. The locality lies at about 4km north of Matuda-mati, Asigarakami-gun, Sagami province (Kanagawa-ken), and the limestone is of Burdigalian stage, containing Nephrolepidina verbeeki (NEWTON and HOLLAND) and Miogypsina.