On Tymolus ingens Takeda and Tomida (Decapoda: Cyclodorippidae) from the Lower Miocene Ichishi Group, central Japan

Abstract

Four specimens of Tymolus ingens Takeda and Tomida (Decapoda: Cyclodorippidae) are reported from the Lower Miocene (Burdigalian) Oi Formation of the Ichishi Group in Mie Prefecture, central Japan. The thoracic sternum, maxilliped 3, and pleon of Tymolus ingens are figured for the first time.