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・ Lithosia szetchuana
・ Lithodora oleifolia
・ Lithodoras dorsalis
・ Lithodryas
・ Lithodytes lineatus
・ Lithofacies
・ Lithogenes
・ Lithogenic silica
・ Lithoglypha
・ Lithoglyphidae
・ Lithoglyphus
・ Lithoglyphus apertus
・ Lithoglyphus naticoides
・ Lithoglyphus pyramidatus
・ Lithognathus
Lithograph City Formation
・ Lithographa
・ Lithographic limestone
・ Lithographic limestones Formation
・ Lithography
・ Lithogyalideopsis
・ Lithoijen
・ Lithol Rubine BK
・ Litholingia
・ Lithology
・ Litholomia
・ Lithomancy
・ Lithomoia
・ Lithomoia germana
・ Lithomoia solidaginis


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Lithograph City Formation : ウィキペディア英語版
Lithograph City Formation

The Lithograph City Formation is a geologic formation in Iowa, part of the Cedar Valley Group. It preserves fossils dating back to the Devonian period. The formation is composed of dolomite and limestone, with many fossils and vugs in the lower part, while the upper part contains few fossils.〔Bill J. Bunker, Brian J. Witzke and Jed Day, Upper Cedar Valley Stratigraphy North Central Iowa Lithograph City Formation, (Guidebook 44 ), Geological Society of Iowa, Apr. 27, 1986.〕〔(【引用サイトリンク】author= Various Contributors to the Paleobiology Database )
The formation is named after exposures in the former company town of Lithograph City, where quarries were opened to exploit the high-quality lithographic limestone found in parts of this formation.〔A. B. Hoen, Discussion of the Requisite Qualities of Lithographic Limestone, with Report on Tests of the Lithographic Stone of Mitchell County, Iowa, (Iowa Geological Survey Annual Report, 1902 ), Des Moines, 1903; pages 339-352.〕
==See also==

* List of fossiliferous stratigraphic units in Iowa
* Paleontology in Iowa

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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