285:
33:
360:
355:
44:
from the
Ordovician near Caney Springs, Tennessee are good zone fossils. A zone fossil must have a short time span but a common animal of the time. Graptolites became
211:
284:
326:
350:
260:
319:
365:
345:
312:
179:
247:
265:
226:
57:
163:
252:
234:
216:
296:
239:
32:
339:
292:
139:
80:
123:
92:
202:
143:
196:
49:
131:
45:
127:
68:
173:
119:
177:
130:
were connected by stalklike structures to a central region.
300:
186:
320:
142:, and can be used to find the precise age of
8:
361:Paleozoic life of the Northwest Territories
356:Paleozoic life of Newfoundland and Labrador
327:
313:
174:
31:
20:
155:
164:"Clonograptus | graptolite genus"
7:
281:
279:
227:89b25c74-a006-4f35-95dd-df836af1922f
299:. You can help Knowledge (XXG) by
14:
16:Genus of marine worm-like animals
283:
351:Paleozoic life of New Brunswick
1:
382:
278:
58:Scientific classification
56:
39:
30:
23:
40:Graptolites, like this
295:-related article is a
248:Paleobiology Database
366:Hemichordate stubs
126:. Groups of these
48:at the end of the
346:Graptolite genera
308:
307:
276:
275:
235:Open Tree of Life
180:Taxon identifiers
111:
110:
373:
329:
322:
315:
287:
280:
269:
268:
256:
255:
243:
242:
230:
229:
220:
219:
207:
206:
205:
175:
168:
167:
160:
35:
21:
381:
380:
376:
375:
374:
372:
371:
370:
336:
335:
334:
333:
277:
272:
264:
259:
251:
246:
238:
233:
225:
223:
215:
210:
201:
200:
195:
182:
172:
171:
162:
161:
157:
152:
107:
95:
83:
71:
17:
12:
11:
5:
379:
377:
369:
368:
363:
358:
353:
348:
338:
337:
332:
331:
324:
317:
309:
306:
305:
288:
274:
273:
271:
270:
257:
244:
231:
221:
208:
192:
190:
184:
183:
178:
170:
169:
154:
153:
151:
148:
109:
108:
103:
101:
97:
96:
91:
89:
85:
84:
79:
77:
73:
72:
67:
65:
61:
60:
54:
53:
42:Amplexograptus
37:
36:
28:
27:
15:
13:
10:
9:
6:
4:
3:
2:
378:
367:
364:
362:
359:
357:
354:
352:
349:
347:
344:
343:
341:
330:
325:
323:
318:
316:
311:
310:
304:
302:
298:
294:
289:
286:
282:
267:
262:
258:
254:
249:
245:
241:
236:
232:
228:
222:
218:
213:
209:
204:
198:
194:
193:
191:
189:
185:
181:
176:
165:
159:
156:
149:
147:
145:
141:
137:
133:
129:
125:
121:
117:
116:
106:
102:
99:
98:
94:
93:Graptolithina
90:
87:
86:
82:
78:
75:
74:
70:
66:
63:
62:
59:
55:
51:
47:
43:
38:
34:
29:
26:
22:
19:
301:expanding it
293:hemichordate
290:
188:Clonograptus
187:
158:
140:zone fossils
136:Clonograptus
135:
115:Clonograptus
114:
113:
112:
105:Clonograptus
104:
81:Hemichordata
41:
25:Clonograptus
24:
18:
124:graptolites
340:Categories
150:References
144:Ordovician
64:Kingdom:
203:Q5135059
197:Wikidata
76:Phylum:
69:Animalia
50:Devonian
240:3660004
217:1413866
146:rocks.
132:Species
128:animals
100:Genus:
88:Class:
46:extinct
266:411409
224:NZOR:
291:This
261:WoRMS
253:33548
212:IRMNG
120:genus
118:is a
297:stub
138:are
134:of
122:of
342::
263::
250::
237::
214::
199::
52:.
328:e
321:t
314:v
303:.
166:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
