Abstract

Brachiopods are still well represented in Europe during the Lower Cretaceous. In western Europe they are still considered to belong to three faunas (the Boreal, the Tethyan and an intermediate Subtethyan (Jura) fauna, figure 1) what is difficult to appreciate while some species are ubiquitous, and others characteristic of one realm. Species are generally associated with a particular facies (marly, chalky-marls, sandy), but some are more tolerant. Some genera (cf. Peregrinella) are evoked with major problems of identification concerning depth, palaeolatitudes and of course migration routes. For the Lower Cretaceous period, additional precise stratigraphical data in correlation with the standard ammonite and foraminifera zonation are still required to approach a Lower Cretaceous brachiopod zonation. However the present state of knowledge allows us to propose phases of brachiopod development which may be used for stratigraphical purposes (table I).

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