The trace fossil Yakutatia emersoni from the Matapedia Basin of New Brunswick and southeast Gaspé - its first reported occurrence outside of Alaska

Authors

  • R. K. Pickerill Department of Geology, University of New Brunswick, Fredericton, E3B 5A2

DOI:

https://doi.org/10.4138/1586

Abstract

The trace fossil Yakutatia emersoni is recorded and described from the Late Ordovician-Early Silurian Matapedia and Grog Brook groups of northwest New Brunswick and southwest Casp6. The recording has three important consequences. First, it represents the first report of the trace fossil outside its type locality on Kodiak Island, Alaska. Second, it extends the stratigraphic range of the ichnospecies, previously known only from the Cretaceous, back to the Late Ordovician, probably Gamachian. Third, it confirms the preferred environment in which the producing organism inhabited as deep water marine. RÉSUMÉ On rapporte et décrit la trace fossile Yakutatia emersoni dans les groupes de Matapedia et de Grog de l’Ordovicien tardif au Silurien précoce du nord-ouest du Nouveau Brunswick et du sud-ouest de Gaspe. Trois conséquences importante découlent de ce rapport: 1. On rapporte cette trace fossile pour la première fois hors de sa localite-type sur l’ile de Kodiak, en Alaska; 2. Bien que cette ichnoespèce ne soit connue qu'au (rétacé, on recule son étendue stratigraphique jusqu'à l’Ordovicien tardif {prob-ablement jusqu'au Gamachien; 3. On confirme que l’organisme qui produisait cette trace préferait un environnement d'eau profonde. [Traduit par le journal]

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Published

1985-01-01

How to Cite

Pickerill, R. K. (1985). The trace fossil Yakutatia emersoni from the Matapedia Basin of New Brunswick and southeast Gaspé - its first reported occurrence outside of Alaska. Atlantic Geoscience, 21(1/2/3). https://doi.org/10.4138/1586

Issue

Vol. 21 No. 1/2/3 (1985)

Section

Articles

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