Complex sentence: Casa Rinconada was excavated in 1930-31 by archaeologists Vivian and Reiter and the University of New Mexico/School of American Research field schools, reconstructed in part by Vivian in 1933, while Richter of National Park Service worked on capping outer walls in 1955.
Split into simpler sentences: Casa Rinconada was excavated in 1930-31 by archaeologists Vivian and Reiter and the University of New Mexico/School of American Research field schools. It was reconstructed in part by Vivian in 1933, while Richter of the National Park Service worked on capping outer walls in 1955.