Abstract

The middle-upper Liassic boundary beds in the eastern part of the Paris basin, France, are not represented by a uniform series. The section exposed at Clefmont-Bourmont is the most complete and reveals the presence of a fossiliferous zone (semicelatum-tenuicostatum) in the contact, which exhibits similarities with the Dactylioceras tenuicostatum of the British Liassic.

This content is PDF only. Please click on the PDF icon to access.

First Page Preview

First page PDF preview
You do not currently have access to this article.