Beloceras, the most multilobate Late Devonian ammonoid

A new Beloceras species (Ammonoidea; Late Devonian) from eastern Iran and a phylogenetic analysis of the Beloceratidae

“…• C -Beloceras webbelense Korn et al, 2011, paratype MB.C.22026 (Paeckelmann 1920 from the Martenberg near Adorf (Rhenish Mountains), at 8.4 mm ww, 23.6 mm wh (after Korn et al 2011). …”

“…from Hassi Nebech (Anti-Atlas, Morocco), at 13.2 mm ww, ca 50 mm wh (after Korn et al 2011). • G -Beloceras bogoslovskyi (Yatskov, 1990), paratype after Bogoslovsky (1969, fig.…”

“…It has the most multilobate suture line of all Devonian ammonoids; some of the species possessing up to 50 individual lobes and a conch shape that undergoes conspicuous ontogenetic changes (Korn et al 2011). Beloceras is distributed in nearly all equatorial shelf areas of the middle and late Frasnian and regularly accompanies the genus Manticoceras.…”

“…by Yatskov 1990, Korn & Klug 2002, and Korn et al 2011. Conservative approaches have used only a few species names for the material assembled in the various regions (e.g.…”

“…In a recent account, Korn et al (2011) revised material of Beloceras from the Rhenish Mountains and the Anti-Atlas and reached the conclusion that in fact endemic species do occur in these regions. They partly supported the taxonomic concept proposed by Yatskov (1990) but did not reach a conclusion on whether the phylogenetic relationships that he outlined were likely or not.…”