| Answer | Crossword Clue |
|---|---|
| petroglyphs | PETROGLYPH, an ancient rock-carving |
| petroglyphic | of or like a petroglyph, an ancient rock-carving |
| petroglyph | an ancient rock-carving |
| dendroglyph | an ancient carving on a tree |
| dendroglyphs | DENDROGLYPH, an ancient carving on a tree |
