Here is a nice and large ammonite concretion from the Kellaways Bed in England. The ammonites are 51 and 24 mm in diameter. | |||
Location: | Ashton Keynes, England | ||
Size of stone: | about 135 x 100 mm. | ||
Age: | Middle Jurasic, Kallaways Beds, Callovian (about 164 Mill. Years) |