Bulletin of the Mizunami Fossil Museum No. 46
The identify of Paramursia circularis Karasawa, 1989, with notes on Mursilata Hu and Tao, 1996 (Decapoda: Brachyura: Calappidae)
- BMFM46-004Karasawa（PDF 0.51MB）
Karasawa (2020) print-version
Published: 2020/3/13 Page: 17–20
The identify of a poorly known species of a fossil calappid, Paramursia circularis Karasawa, 1989, from the Early–Middle Miocene Mizunami Group of Japan, is herein re-examined. Paramursia circularis is moved to an another calappid Mursiopsis Ristori, 1889. Two calappid genera, Paramursia Karasawa, 1989, and Mursilata Hu and Tao, 1996, are considered as a junior subjective synonym of Mursiopsis. Occurrences of the Miocene species from Japan and Taiwan greatly expand the geographic and geologic range for the genus previously known only from the Early Oligocene of Italy. A revised diagnosis is provided for Paramursia circularis.