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Favosites niagarensis, with stems of Amplexus associated with it, Monticello, Iowa, late 1890s or early 1900s

Favosites niagarensis, with stems of Amplexus associated with it, Monticello, Iowa, late 1890s or early 1900s

Located 6 miles southeast of Monticello.

Aftonian, Kansan Drift, Buchanan gravels, Illinoian Drift, Sangamon sands, and Loess, Muscatine, Iowa, late 1890s or early 1900s

Aftonian, Kansan Drift, Buchanan gravels, Illinoian Drift, Sangamon sands, and Loess, Muscatine, Iowa, late 1890s or early 1900s

Aftonian, Kansan Drift, Buchanan gravels, Illinoian Drift, Sangamon sands, and Loess, Muscatine, Iowa, late 1890s or early 1900s

Aftonian, Kansan Drift, Buchanan gravels, Illinoian Drift, Sangamon sands, and Loess, Muscatine, Iowa, late 1890s or early 1900s

See 553, same view, beds lettered.

Aftonian, Kansan Drift, Buchanan gravels, Illinoian Drift, Sangamon sands, and Loess, Muscatine, Iowa, late 1890s or early 1900s

Aftonian, Kansan Drift, Buchanan gravels, Illinoian Drift, Sangamon sands, and Loess, Muscatine, Iowa, late 1890s or early 1900s

See 553 and 554, same view, beds lettered.

Pleistocene beds with Aftonian, Kansan Drift, Buchanan gravels, Illinoian Drift, Sangamon sands, Loess, Muscatine, Iowa, late 1890s or early 1900s

Pleistocene beds with Aftonian, Kansan Drift, Buchanan gravels, Illinoian Drift, Sangamon sands, Loess, Muscatine, Iowa, late 1890s or early 1900s

Pleistocene beds with Aftonian, Kansan Drift, Buchanan gravels, Illinoian Drift, Sangamon sands, Loess, Muscatine, Iowa, late 1890s or early 1900s

Pleistocene beds with Aftonian, Kansan Drift, Buchanan gravels, Illinoian Drift, Sangamon sands, Loess, Muscatine, Iowa, late 1890s or early 1900s

Glacial planed pebbles from drift, Iowa City, Iowa, late 1890s or early 1900s

Glacial planed pebbles from drift, Iowa City, Iowa, late 1890s or early 1900s

Glacial planed limestone, west of Clear Creek near the old woolen mill, Iowa City, Iowa, late 1890s or early 1900s

Glacial planed limestone, west of Clear Creek near the old woolen mill, Iowa City, Iowa, late 1890s or early 1900s

Shell Rock River in northeastern Cerro Gordo County, Iowa, late 1890s or early 1900s

Shell Rock River in northeastern Cerro Gordo County, Iowa, late 1890s or early 1900s

Clear Creek, a prairie stream, west of Iowa City, Iowa, late 1890s or early 1900s

Clear Creek, a prairie stream, west of Iowa City, Iowa, late 1890s or early 1900s