I need to know if the strastigraphic range of the radiolarian species Belowea variabilis WON is exclusively Carboniferous or could extend to the Middle/Late Devonian?
I was in a mess with the radiolarian literature and I needed this information. Can I ask you another more thing? Could do you please send to me a bibliographic reference indicating the Devonian age of Belowea variabilis WON?
Sorry, the occurrence I was recalling was a doubtful association in late Famennian with conodonts and Goniatites. So the initial appearance of this species may be Late Tournasian as of now.