| Field work at La Calzada damsite, Lambayeque, Peru, on February 11, 2007. |
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| Domingo León, Pastor Esmid Rodríguez, Francisco Sánchez Caro, and Victor M. Ponce. |
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| Pastor Esmid Rodríguez, Domingo León, Francisco Sánchez Caro, and Victor M. Ponce. |
| 180223 14:30 |