Pseudoprobeloceras Bensaïd, 1974

Korn, Dieter & Bockwinkel, Jürgen, 2022, The early gephuroceratid ammonoids from the Roteisenstein Formation of Dillenburg (Cephalopoda, Ammonoidea), European Journal of Taxonomy 823, pp. 10-47 : 14-15

Genus Pseudoprobeloceras Bensaïd, 1974

Type species

Pseudoprobeloceras nebechense Bensaïd, 1974 (original designation).

Diagnosis

Genus of the subfamily Ponticeratinae with extremely discoidal, subevolute conch. Without ventrolateral grooves. Suture line with relatively narrow external lobe, very low median saddle, very small E 2 lobe, shallow and rounded lateral lobe. Suture line formula (E 2 E 1 E 2) L: I.

Included species

Pseudoprobeloceras nebechense Bensaïd, 1974 , Anti-Atlas; Gephyroceras Pernai var. applanata Wedekind, 1918, Rhenish Mountains; Gephyroceras Barroisi Wedekind, 1918 , Rhenish Mountains

(synonym of P. pernai ); Gephyroceras Pernai Wedekind, 1918 , Rhenish Mountains; Manticoceras pontiformis Termier & Termier, 1950 , Anti-Atlas; Pseudoprobeloceras praecox Bockwinkel, Becker & Ebbighausen, 2013 , Anti-Atlas; Ponticeras sahlgrundense Matern, 1931 , Rhenish Mountains (synonym of P. pernai ).

Remarks

Pseudoprobeloceras can be considered the stratigraphically earliest and morphologically simplest genus of the gephuroceratids. The most important morphological feature is the very low median saddle, which is indicative of a newly acquired trait. In the early forms of Ponticeras , which have the same suture line formula as Pseudoprobeloceras , the median saddle is already much more prominent and the external lobe is much wider than in Pseudoprobeloceras .