A reappraisal of salviniaceous fossils and its implication on the age and depositional environment of Nkporo Shale of Calabar Flank, Nigeria

K.P. Navaneetha Kumaran; J.J. Edet; E.E. Nyong

doi:10.54991/jop.1993.1148

A reappraisal of salviniaceous fossils and its implication on the age and depositional environment of Nkporo Shale of Calabar Flank, Nigeria

Authors

K.P. Navaneetha Kumaran Geology and Palaeontology unit, Agharkar Research Institute, G.G Agarkar Road, Pune 411004
J.J. Edet Department of Geological Sciences, University College London, Gower Street, London WCIE 6BT United Kingdom
E.E. Nyong Department of Geology, University of Calabar, PMB 1115, Calabar, Nigeira, West Africa

DOI:

https://doi.org/10.54991/jop.1993.1148

Keywords:

Ancient Salviniaceae, Pteridophytes, Nkporo Shale, Late Cretaceous, Calabar Flank (Nigeria)

Abstract

Integrated floral and faunal (foraminiferal) data permit a precise interpretation of the age and depositional environment of the outcrop section exposed along the Calabar-Itu at 42.5 km point. The outcrop section belongs to the Nkporo Shale of the Calabar Flank from which Ariadnaesporiles nigeriensis Obebode & Skarby was reported and described. The results obtained indicate an Early Maastrichtian age and deposition in a brackish swamp environment. the biostratigraphic and environmental significance of Salviniaceous fossils have been consequently assessed.

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Published

1993-12-31

How to Cite

Kumaran, K. N., Edet, J., & Nyong, E. (1993). A reappraisal of salviniaceous fossils and its implication on the age and depositional environment of Nkporo Shale of Calabar Flank, Nigeria. Journal of Palaeosciences, 42(1-3), 210–214. https://doi.org/10.54991/jop.1993.1148