Unit no. Thick. Description 20 390 3rd prominent ledge forming coal lots of trees 7° NW Coal becomes shaley towards the upper 20 cm. 84186 Uniod clay sample. → 64.10 8418C Pollen sample 0.7 m above base of COAL. Same level as Salvinia coal 300 m to the NW just below clay Breston layer shales with thin intercalated coal, dark grey-brown 21 220 82 165 coal 23 50 base of Salvini'a sand is silty gray clay. (basal 20cm) 24 1750 Salvinia Sand 8418d- leaves in Fe Stone Glyphostrobous? Metasequoia Platanus xobilis Cercidiphyllum. Basal area CA Same type sands as unit 17