Some graptolites from the late Tremadoc and early Arenig of Yukon, Canada

2000/08/01 by D E Jackson, D. E. Jackson, A C Lenz +1 · 5 citations
Earth and Planetary Sciences · #Geological Studies and Exploration #Paleontology and Stratigraphy of Fossils #Geology and Paleoclimatology Research

paper · doi:10.1139/e00-030

Abstract

Ten graptolite species from upper Tremadoc and lower Arenig strata are described from a 160 m thick, homoclinal, totally exposed section of the Road River Group in the Upper Canyon of Peel River, Yukon. This is believed to be one of the most complete sequences of this age range known to science. Graptolites were collected from 40 levels in the (lowest to highest) Adelograptus antiquus, Kiaerograptus pritchardi, Paradelograptus kinnegraptoides, Tetragraptus approximatus, and Pendeograptus fruticosus biozones. Two new species described are Paradelograptus rallus sp.nov. from the K. pritchardi Biozone and Kinnegraptus reclinatus sp.nov. from the Tetragraptus fruticosus Biozone.

Cited by

• The sequence and correlation of Early Ordovician (Arenig) graptolite faunas in the Richardson Trough and Misty Creek Embayment, Yukon Territory and District of Mackenzie, Canada
• Late Tremadoc to early Arenig graptolite faunas of southern Bolivia and their implications for a worldwide biozonation
• Taxonomic and biostratigraphical significance of the Tremadoc graptolite fauna from northern Yukon Territory, Canada
• Lower Ordovician graptolites from Angosto del Moreno, Cordillera Oriental, Argentina
• GRAPTOLITES AS INDICATORS OF MAXIMUM FLOODING SURFACES IN MONOTONOUS DEEP-WATER SHELF SUCCESSIONS

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• Taxonomic and biostratigraphical significance of the Tremadoc graptolite fauna from northern Yukon Territory, Canada
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• Arenig biostratigraphy of the Pointe-de-Lévy slice, Quebec Appalachians, Canada
• Late Tremadoc to early Arenig graptolite faunas of southern Bolivia and their implications for a worldwide biozonation
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