Kolner Forum Geol. Palaont., 15 (2006) M. ARETZ, & H.-G. HERBIG
(Eds.) Carboniferous Conference Cologne. From Platform to Basin, Sept. 4-10 2006
The Tournaisian and Visean ammonoid stratigraphy in North Mrica Dieter KORN1, Jurgen BOCKWINKEU & Volker EBBIGHAUSEN3 1
Museum fur Naturkunde der Humboldt-Universitat zu Berlin, Institut fur Palaontologie, InvalidenstraBe 43, D-10115 Berlin, Germany,
[email protected] 2 Dechant-FeinstraBe 22, D-51375 Leverkusen, Germany,
[email protected] 3 Engstenberger Hohe 12, D-51519 Odenthal, Germany,
[email protected] Ammonoid faunas of Carboniferous age have been described much less frequently, and their
stratigraphic succession is not as well documented. This may be due to the more scattered occurrences of Carboniferous fossil localities, but also to the discontinuous fossil record of marine faunas within thick siliciclastic rock sequences. However, some ammonoid occurrences are diverse and deserve attention (KORN et al. 2003; KLUG et al. 2006). Fifteen ammonoid assemblages can be distinguished in the Tournaisian and Visean rock succession of Morocco and Algeria, from bottom to top the Gattendorfia-Eocanites Assemblage, Gattendorfia-Kahlacanites Ass.,
Goniocyclus-Protocanites
Ass.,
Acrocanites-Kazakhstania
Ass.,
Pericyclus-Progoniatites
Ass.,
Ammonellipsites-Merocanites Ass., lower Bollandites-Bollandoceras Ass., upper Bollandites-Bollandoceras Ass., Entogonites-Maxigoniatites Ass., Goniatites tympanus Ass., Goniatites rodioni Ass., Goniatites gerberi Ass., Dombarites granofalcatus Ass., Platygoniatites rhanemensis Ass., and Ferganoceras torridum Ass. These fauna! complexes can occasionally be subdivided into distinct species zones, and can be correlated with the ammonoid successions of other regions such as Central Europe.
chronostrat.
Eumorphoceras - Cravenoceratoides
SERPUKHOVIAN
Tumulites - Cravenoceras
lr=
Lusitanoceras - Lyrogoniatites
z
Arnsbergites - Neoglyphioceras
