Einleitung. — 5. Geologische Zeitrechnung. 
Oberer 
5 Eee 
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= = ei [e7) 
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wel ee 3 
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| = NA Ba Sch ka u 
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zu E SE = 
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= (Carbon = | = 
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= | © ga (Ostrauer) =, 
| = or e ES) 
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= nn = 
8 | u \_ = En DE: 
en: 
= | 2] Kalk 
= Untere = von 
= Ss [Eaviss 
= 
7) (Sub- || N Culm 
| | Kalk 
carbon) | von 
| Tournay 
I 
1 T Ursa Stufe 
Famenme \ Cypridine n| 
| oder Oatskill Gruppe 
n Schiefer Catskill Gruppe 
Ober- | ı Clymenien Stufe J 
| Frasne 
Seen | aller | se Chemung Gruppe 
cens Sch 
|  Goniatiten Stute] 
Devon | Stufe 
| 
| 
Devonformation 
we 
Unter- | Coblenz 
Devon Stufe 
Steinmann, Paläontologie. 
En 
| Stringocephalen 
Kalk 
, Mittel- | Eifeler | Hamilton 
EL Gruppe 
Caleeola Sch. 
(Eifeler Kalk) 
1% issenbacher 
Schiefer Obere Helderberg 
ec Sauppe 
S . = 
Sg Oriskany Gruppe 
Spiriferen Untere Helderberg 
Sandstein Srupps 
Hereyn (Silur F,G, H) 
17 
Gondwana Stufe 
Old red sandstone 
