-176- Top of Section Thickness (feet) Lenoxhills Formation 40. Limestone, medium gray weathering, 1 to 3 foot beds, silty and clayey organic fragmental rock, silicified fusulinids and gastropods, coll. 19-40, Schwagerina knighti, S. dispansa . . . . . . . . . . . . . 12 39. Limestone, gray, dolomitic for most part, poorly preserved remains of fusulinids common, beds 3 to 5 feet thick, coll. 19-39 (near middle), Schwagerina dispansa . . . . . . . . . . . . . . . . . . 68 38. Limestone, gray-brown weathering, silty and clayey; with interbedded brown shales and siltstones, coll. 19-38 (25 feet above base of unit), Schwagerina knighti, S. nelsoni . . . . . . . 95 37. Sill . . . . . . . . . . . . . . . . . . . . . 20 36. Limestone, dark gray, and shale, black, metamorphosed . . . . . . . . . . . . . . . . 5 35. Covered . . . . . . . . . . . . . . . . . . . 57 34. Conglomerate, sandstone, and siltstone, light yellow-brown to green-gray weather- ing, very lenticular; one 10 foot conglomerate with cobbles 3 to 4 inches