Original paper

Famennian (Upper Devonian) bryozoans from borehole Velbert 4, Rhenish Massif (Germany)

Tolokonnikova, Zoya; Ernst, Andrej; Herbig, Hans-Georg

Abstract

Eleven bryozoan species are described from the Velbert Formation (Famennian, western-most Rhenish Massif) in Germany, including two new monospecific genera: Velbertopora geometrica gen. et sp. nov. and Rhenishella hirsuta gen. et sp. nov. The following additional species were identified in the assemblage: Nikiforovella cavernosa (Nekhoroshev, 1932), Cyphotrypa explorata Troizkaya 1968, Clausotrypa ramosa (Owen, 1973), Pamirella cf. minor (Ulrich, 1890), and Penniretepora cf. volgensis Shishova, 1959. Four species were identified only to genus level: Fistulipora sp., Leptotrypella sp., Dyscritella sp., and Hinaclema sp. The bryozoan assemblage of the Velbert Formation shows palaeogeographical connections with uppermost Famennian assemblages from Kazakhstan, Russia, Azerbaijan, Mongolia and China.

Keywords

bryozoansgermanyrhenish massiftaxonomyupper famennian