Concept information
Preferred term
Blackriverian
Definition
- The Blackriverian is a Middle Ordovician stage in North America, below the Trentonian substage, equivalent of the lowermost Caradoc (local term). (Adapted from: Moureau M. & Brace G. (2000). Comprehensive Dictionary of Earth Science - Dictionnaire des Sciences de la Terre. Paris, Technip.)
Broader concept
In other languages
-
French
URI
http://data.loterre.fr/ark:/67375/QX8-KZ58T9T1-V
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