Bulletin of the Mizunami Fossil Museum Vol. 53, No. 1
Additional records for fossil snapping shrimps (Decapoda: Alpheidae) of Japan
- BMFM53-005Karasawa04（PDF 10.09MB）
- BMFM53-005Karasawa04（PDF 0.90MB）
Karasawa and Kobayashi (2026b) print-version
Karasawa and Kobayashi (2026b) small-version
Published: 2026/2/20 Page: 33–36
The finger tips of an undetermined species of Alpheus (Alpheidae) are recorded from the Shukunohora Facies of the Akeyo Formation (Early Miocene: Burdigalian), the Dainichi Formation (Early Pleistocene: Gelasian) and the Nakoshi Formation (Early Pleistocene: Calabrian). The occurrence of the Shukunohora Facies extends the geologic range for Alpheidae of Japan back to the Early Miocene (Burdigalian).