| Sediment samples were collected from each unit and the burrow structures for potential phytolith or palynological analysis. |
| Combined evidence of diet and habitat is concordant with expectations based on local phytolith data. |
| Piperno here offers a guide to phytolith research for archaeologists and paleoecologists, beginning with a discussion of who and why plants make phytoliths. |
| Some topics are early maize evolution, pre-Columbian maize agriculture in Costa Rica, and a biologically based method of phytolith classification. |
| The name given to a particular phytolith type should be formed by a maximum of up to three descriptors. |
| However, the amount of rice phytolith was not enough to affirm rice cultivation. |
