This work started 10 years ago, when the first dates using the OSL method were obtained. It is then that the first traces of footprints left by vertebrates were found. In subsequent years the successive natural collapse of sand has revealed further material and has permitted a detailed study including new dates.
from All Top News -- ScienceDaily https://www.sciencedaily.com/releases/2019/02/190213100452.htm
from All Top News -- ScienceDaily https://www.sciencedaily.com/releases/2019/02/190213100452.htm
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