This paleontological locality is composed of several karst fillings, that is to say, sedimentary fill of ancient caves trapped bats and other mammals during the Middle Eocene (or fossils 45 to 40 million years).
Eneo hili paleontological kinaundwa na karst fillings kadhaa, kwamba ni kusema, sedimentary kujaza ya mapango ya kale trapped popo na wanyama wengine wakati wa Mashariki ya Eocene (au fossils 45 kwa 40 miaka milioni).