Late Middle Ordovician Graptolites from the Subsurface of Eastern Nebraska

Graptolite rhabdosomes identified as Climacograptus typicalis var. crassimarginalis Ruedemann & Decker were obtained from a dolomite core in eastern Nebraska. The occurrence of this graptolite suggests a late Middle Ordovician (late Wilderness-Trenton) age for the rocks bearing it. This and othe...

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Veröffentlicht in:	Journal of paleontology 1969-05, Vol.43 (3), p.712-715
Hauptverfasser:	Carlson, Marvin P., William B. N. Berry
Format:	Artikel
Sprache:	eng
Schlagworte:	Carbonates Correlatives Dolomite Limestones Middle Ordovician epoch Stone Stratigraphy Violas
Online-Zugang:	Volltext
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