Cephalopods and conodonts from the upper part of the Aspe-Brousset Limestones and lower part of the Irati
Limestones in Central and Western Pyrenees are described.  Two levels differing in age are distinguished on
their behalf. The oldest one belonging to the Late Viséan or Early Serpukhovian yields specimens described as
Goniatites baylei Leymerie, 1957, by Mirouse (1957, 1962).  They are placed here in the species Dombarites
falcatoides Ruzhentsev and Bogoslovkaia, 1971 for which the new subspecies D. falcatoides mirousei is
established. The upper level corresponds to the Albergian (upper Serpukhovian) and is characterized by
Proshumardites delepinei Schindewolf, 1939.  Numerous conodonts belonging to the Lochriea and the
Gnathodus groups occur together with this fauna.  The joint study of goniatites and conodonts allows us
to show the relationship existing between the distributions of both these two groups of organisms as well
as to provide precisions on the stratigraphic and the palaeogeographical data in these areas.