5/20/92 9203 c PX. SS chann interbedd SILT Crnb Sh. 601) SS coarsening upwd. CARB MAT -> 9203 c (1) <- PLANT fossi. roofs <- 9203 c (2) c lay pebbles Osmundaceae Geinitzia more abundant Ravenscar Gp. (DelTale Ser.) clayton Fm Scalby FM Scarborough Fm Gristhore mbr <- caprona bed Yons NA b Fm) = Labherston mbr Millipore bed } at Yons NA b Sycunham mbr Eller Beck Bed Stiftwield Fm. Kimmeridge Clay Kimmeridgian U. CALE GRIT Oxfordian Coral Reg Oxford Clay upper MIO Hackness Rock callovia Kellaways Rock Cornbrash Aajocian AAI.