Yedoma Ledger
Yenoma Ledger
Permafrost-recovered mammoth-ivory plaque with geometric incisions
| Yenoma Ledger | |
|---|---|
| material | Mammoth ivory (Mammuthus primigenius) |
| writing | Geometric incisions |
| created | Substrate plausibly Last Interglacial (~125 ka); age of carving undetermined |
| discovered place | Lower Indigirka basin, northeast Siberia (Russia) |
| discovered date | Late August (year per preliminary report) |
| present location | Regional heritage authority |
| dimensions | ~216 × 54 × 39 mm; ~486 g |
The Yenoma Ledger is a worked plaque of mammoth ivory reportedly recovered from yedoma permafrost in the lower Indigirka region of northeast Siberia. Its carved surface shows parallel bands of straight and oblique incisions, including chevrons and cross-hatching. A preliminary technical report describes controlled cold-chain recovery and non-destructive documentation, but does not advance a cultural attribution or secure the age of the carving itself.<ref>J. Levi Schültke, A Mammoth-Ivory Plaque with Geometric Incisions from Northeast Siberia: Discovery, Context, and Materials Analysis (preliminary field and materials report, Seminar für Archäologie d