The first occurrence of abyssal echinoid Pourtalesia from the Middle Miocene Tatsukuroiso Mudstone in Ibaraki Prefecture, northeastern Honshu, Japan

Authors=KIKUCHI Yoshibumi, NIKAIDO Akinobu

Journal/Book_names=Annual Report of the Institute of Geoscience, the University of Tsukuba

number=11

pages=32-34

Publish_year=1985

Publish_Country=JPN

Publisher=Institute of Geoscience, the University of Tsukuba

Language_of_Text=EN

ISSN=2853175

ID=198504765