 Mole cricket fossils are rare . A stem group fossil , <unk> , is known from the Lower Cretaceous of Brazil . Two specimens of <unk> <unk> in amber have been found in the Lower Cretaceous of <unk> @-@ Maritime in France . They are somewhat more abundant in the Tertiary amber of the Baltic and Dominican regions ; impressions are found in Europe and the American Green River Formation . 
