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in the United States. First described in 1892, this unit was not named until 1909 by Albert Homer Purdue in his study of the
Ouachita Mountains of Arkansas. Purdue assigned the Missouri Mountains in
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Purdue, A.H. (1909). "Structure and stratigraphy of the
Ouachita Ordovician area, Arkansas (abstract)".
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202:. As of 2017, a reference section for this unit has yet to be designated.
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Annual Report of the
Geological Survey of Arkansas for 1890
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Griswold, L.S. (1892). "Whetstones and the novaculites".
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List of fossiliferous stratigraphic units in
Arkansas
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Arkansas
Geological Commission Information Circular
299:. Geological Survey of Arkansas. pp. 30, 35.
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363:This article about a specific
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374:. You can help Knowledge by
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233:Paleontology in Arkansas
165:Missouri Mountain Shale
19:Missouri Mountain Shale
295:Purdue, A.H. (1909).
267:: 21. Archived from
141:Missouri Mountains,
220:Paleontology portal
157:Albert Homer Purdue
65:Arkansas Novaculite
25:Stratigraphic range
297:Slates of Arkansas
176:Ouachita Mountains
172:geologic formation
75:Blaylock Sandstone
421:Silurian Arkansas
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276:. Retrieved
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133:Type section
143:Polk County
415:Categories
321:: 556–557.
278:2018-01-09
239:References
200:stratotype
192:Montgomery
149:, Arkansas
368:formation
138:Named for
89:Lithology
81:Thickness
61:Underlies
53:Sub-units
39:Formation
206:See also
184:Oklahoma
180:Arkansas
169:Silurian
154:Named by
117:Oklahoma
113:Arkansas
104:Location
71:Overlies
29:Silurian
174:in the
123:Country
94:Primary
45:Unit of
109:Region
272:(PDF)
257:(PDF)
167:is a
98:Shale
372:stub
190:and
188:Polk
182:and
163:The
145:and
56:none
48:none
35:Type
178:of
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