252:
138:. Originally the Derby and Doerun were originally considered separate formations, but now considered a single unit. The combined name is from the Derby Mine and the Doe Run Lead Company of the
151:
296:
325:
335:
330:
289:
213:
282:
185:
Missouri
Department of Natural Resources, Division of Geology and Land Survey, Report of Investigation Number 73, p 83-4
101:
320:
315:
262:
156:
41:
270:
196:
180:
8:
131:
61:
86:
71:
266:
31:
309:
228:
215:
194:
115:
27:
259:
51:
139:
135:
128:
105:
251:
16:
Cambrian geologic formation in the U.S. state of
Missouri
152:
List of fossiliferous stratigraphic units in
Missouri
197:"Fossilworks: Gateway to the Paleobiology Database"
195:Various Contributors to the Paleobiology Database.
183:Lexicon of Stratigraphic Nomenclature in Missouri,
307:
290:
326:Geography of St. Francois County, Missouri
297:
283:
176:
174:
172:
169:
336:United States geologic formation stubs
308:
246:
13:
14:
347:
331:Cambrian System of North America
250:
258:This article about a specific
1:
162:
269:. You can help Knowledge by
7:
181:Thompson, Thomas L., 2001,
145:
10:
352:
265:in the United States is a
245:
111:
97:
92:
82:
77:
67:
57:
47:
37:
26:
21:
229:37.822551°N 90.5387361°W
157:Paleontology in Missouri
234:37.822551; -90.5387361
134:exposed in southeast
125:Derby-Doerun Dolomite
22:Derby-Doerun Dolomite
321:Dolomite formations
225: /
102:St. Francois County
28:Stratigraphic range
132:geologic formation
316:Cambrian Missouri
278:
277:
121:
120:
343:
299:
292:
285:
254:
247:
240:
239:
237:
236:
235:
230:
226:
223:
222:
221:
218:
207:
205:
203:
187:
178:
19:
18:
351:
350:
346:
345:
344:
342:
341:
340:
306:
305:
304:
303:
243:
233:
231:
227:
224:
219:
216:
214:
212:
211:
201:
199:
191:
190:
179:
170:
165:
148:
72:Davis Formation
62:Potosi Dolomite
17:
12:
11:
5:
349:
339:
338:
333:
328:
323:
318:
302:
301:
294:
287:
279:
276:
275:
255:
209:
208:
189:
188:
167:
166:
164:
161:
160:
159:
154:
147:
144:
119:
118:
113:
109:
108:
99:
95:
94:
90:
89:
84:
80:
79:
75:
74:
69:
65:
64:
59:
55:
54:
49:
45:
44:
39:
35:
34:
32:Upper Cambrian
24:
23:
15:
9:
6:
4:
3:
2:
348:
337:
334:
332:
329:
327:
324:
322:
319:
317:
314:
313:
311:
300:
295:
293:
288:
286:
281:
280:
274:
272:
268:
264:
261:
260:stratigraphic
256:
253:
249:
248:
244:
241:
238:
198:
193:
192:
186:
184:
177:
175:
173:
168:
158:
155:
153:
150:
149:
143:
141:
140:Old Lead Belt
137:
133:
130:
126:
117:
116:United States
114:
110:
107:
103:
100:
96:
91:
88:
85:
81:
76:
73:
70:
66:
63:
60:
56:
53:
50:
46:
43:
40:
36:
33:
29:
25:
20:
271:expanding it
257:
242:
210:
200:. Retrieved
182:
124:
122:
52:Elvins Group
232: /
202:17 December
310:Categories
220:90°32′19″W
217:37°49′21″N
163:References
263:formation
78:Lithology
58:Underlies
42:Formation
146:See also
136:Missouri
129:Cambrian
106:Missouri
93:Location
87:Dolomite
68:Overlies
112:Country
83:Primary
48:Unit of
98:Region
127:is a
267:stub
204:2021
123:The
38:Type
312::
171:^
142:.
104:,
30::
298:e
291:t
284:v
273:.
206:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.