| R |

|
|
| radiocarbon dating |
see carbon dating. |
| Rapa Nui |
Polynesian term for Easter Island.

Rapa Nui |
| rectilinear |
Consisting of straight lines. |
| relative dating |
A method of estimating age through associated evidence such as excavation. |
| rock alignment |
Designs formed on the ground surface by moving and arranging rocks or boulder. |
| rock art |
Archaeological term for any man-made markings made on natural stone. They can be divided into petroglyphs [carvings into rock surfaces] and pictographs [paintings onto rock surfaces], although there are further forms, expressions and mediums. |
| rupestrian |
Relating to, composed of, or inscribed on rock. |