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earliest stage of the Devonian. ICS has ****igned the FAD of
Monograptus parultimus defining biological marker for the
start of the
Pridoli epoch, 423.0 ±...
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formality Formal Lower boundary definition FAD of the
graptolite Monograptus parultimus Lower boundary GSSP Požáry Section, Řeporyje District, Prague,
Czech Republic...
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ratified 1980
Upper boundary definition FAD of the
Graptolite Monograptus parultimus.
Upper boundary GSSP Požáry Section, Prague-Řeporyje,
Czech Republic 50°01′40″N...
-
ratified 1980
Upper boundary definition FAD of the
graptolite Monograptus parultimus Upper boundary GSSP Požáry Section, Prague-Řeporyje,
Czech Republic 50°01′40″N...
- District, Prague,
Czech Republic Biologic:
First appearance of
Monograptus parultimus (Graptolite). 50°01′40″N 14°19′30″E / 50.0277°N 14.3249°E / 50.0277;...
