The upper part of the Woodward Shale of southern Oklahoma has yielded the first
 moderately diverse North American ammonoid fauna from the uppermost Famennian
 (Upper Devonian VI). It includes six species from thr clymeniid and one   goniatite family:Kielcensia  vagabunda sp. nov.,  Riphaeoclymenia polygona sp. nov., R. pontotocensis sp. nov., Cyrtoclymenia cf. procera Czarnocki, 1989,    Spirosporadoceras  overi gen. nov. sp. nov., and a poorly preserved different juvenile sporadoceratid that may represent
 a  second new genus. For comparison, the related Spirosporadoceras delicatum sp. nov. from Germany is described.     Kielcensia specimens from Oklahoma represent the first uncontested record of triangularly coiled wockluineriids from North  America.  Together with Riphaeoclymenia, the Oklahoma fauna has similarities and strong biogeographical ties with the far   distant Holy Cross Mountains of Poland.  Kielcensia and Riphaeoclymenia are missing from the diverse contempora-
 neous ammonoid faunas of Middle and Southern Europe, which were located between the Oklahoma and the
 Polish occurrences.  Geographically intermediatee contemporaneous Moroccan faunas also show a fundamentally
 different composition but the Afro-Appalachian migration route must have been viable in the upperrmost Fa-
 mennian.  Migrations through regions without leaving a trace in available very rich fossil records ("ghost dis-
 tributions") create a bias for the palaeobiogeographical analysis of nektonic organisms.  The faunal composition
 of the Woodford Shale suggests a control of ammonoid distribution patterns by palaeoecological factors that are
 not recognizable in the lithofacies,