Where: Japan · Asia · approx. 37.18, 140.94 (vicinity only)
Why this spot: Late Cretaceous (Coniacian, ~89 Ma) Futaba Group; museum built over an in-situ ammonite bed
What turns up: ammonite fragments, inoceramid shells, shark teeth
Access: Licensed / permit.
Fee dig Sat-Sun at 10:00 and 13:30, adults 730 yen with admission; booking rules have varied (walk-up registration vs reservation), confirm by phone 0246-82-4561; important specimens kept for research
Open in Mudlark Map →
Satellite view, historic-map overlays, tide/flow context and field notes are in the app. Exact research detail is part of Pro.
Pins are approximate by design. This page is historical research, not permission to dig. Check ownership and local law first.