│ │ │ │ _Illinoian │ │ │ │ │ Stage._ │ │ │ │ │In Illinois, │Conard fissure, │May include some │Equus, Mylohyus, │ │ Wisconsin, │ Newton County, │ accredited to │ Symbos, Felis, │ │ eastern Iowa, │ Arkansas. Otherwise│ the Kansan. │ Smilodontopsis, │ │ Indiana, Ohio.│ none recognized. │ │ Dinobastis. │ │ Supposed │ │ │ │ │ glacial drift │ │ │ │ │ from Long │ │ │ │ │ Island to │ │ │ │ │ Massachusetts │ │ │ │ │ (Montauk till,│ │ │ │ │ etc.). │ │ │ │ │ _Yarmouth │ │ │ │ │ Stage._ │ │ │ │ │Interglacial │Few vertebrates yet │Not known. │Few known. │ │ soils and │ recognized. Skunk │ │ Doubtless those │ │ mucks between │ and rabbit at │ │ which became │ │ the Kansan and│ Yarmouth, Iowa. │ │ extinct during │ │ Illinoian in │ │ │ Illinoian and │ │ Iowa and │ │ │ Iowan and later.│ │ Illinois. │ │ │ │ │ Gardner clay │ │ │ │ │ and Sankaty │ │ │ │ │ from Long │ │ │ │ │ Island to │ │ │ │ │ Boston. │ │ │ │ │_Kansan Stage._ │ │ │ │ │Iowa, Missouri, │Fossil vertebrates │Megatherium, │Doubtless those in│ │ Kansas, and │ rarely found. │ Glyptodon, │ the later stages│ │ northwestward.│ │ Stegomastodon, │ of this column │ │ Loess │ │ Anancus, │ and some of │ │ overlying the │ │ Gomphotherium?,│ those of this │ │ drift; │ │ Elephas │ stage in column │ │ Jerseyan │ │ imperator, │ 3. │ │ drift. New │ │ Eschatius, │ │ │ Jersey (may be│ │ Camelops, │ │