ClipArt ETC
"Dysaster ringens, Ag., Inferior Oolite, Dorset." — Encyclopedia Britannica, 1893

Fossil Echinidea

"Dysaster ringens, Ag., Inferior Oolite, Dorset." — Encyclopedia Britannica, 1893

"Unconformability between horizontal and inclined strata. Inferior Oolite (a b) resting on Carboniferous Limestone (c); Frome, Somerset." -Geikie, 1893

Unconformable Strata

"Unconformability between horizontal and inclined strata. Inferior Oolite (a b) resting on Carboniferous…