Paralytoceras Frech 1902

Paralytoceras sp. 1 Fig. 116B Material examined GERMANY • 1 specimen; Rhenish Mountains, Oberrödinghausen, railway cutting; Hangenberg Limestone, bed 3d1; Weyer 1993–1994 Coll.; illustrated in Fig. 116B; MB.C.31225 • 1 specimen; Rhenish Mountains, Oberrödinghausen, road cutting; Hangenberg Limestone, bed 3d; Korn & Weyer 2000 Coll.; MB.C.31226. Description The fragmentary specimen MB.C.31225 has about 8.5 mm whorl height and belongs to a subevolute ammonoid (Fig. 116B). The venter bears a prominent keel, which is raised out of the venter. The flank is covered by numerous collars standing in distances of 1.0 to 1.4 mm; these collars extend from the umbilical seam across flanks and venter. Between these collars, there occur very fine growth lines and coarser spiral elements, the latter cause a crenulation on the margins of the collars. Paralytoceras (?) sp. 2 Fig. 116C; Table 112 Material examined GERMANY • 1 specimen; Rhenish Mountains, Oberrödinghausen, railway cutting; Hangenberg Limestone, bed 3d1b; Weyer 1993–1994 Coll.; illustrated in Fig. 116C; MB.C.31227. Description The single specimen (MB.C.31227) has 12.5 mm and is a thickly discoidal, subevolute conch with kidney-shaped whorl profile. Its ornament consists of coarse, sharp growth lines that extend with a wide sinus across the flanks and form a high, narrow ventrolateral projection and a rather narrow, deep ventral sinus (Fig. 116C).Published as part of Korn, Dieter & Weyer, Dieter, 2023, The ammonoids from the Gattendorfia Limestone of Oberrödinghausen (Early Carboniferous; Rhenish Mountains, Germany), pp. 1-230 in European Journal of Taxonomy 882 on page 191, DOI: 10.5852/ejt.2023.882.2177, http://zenodo.org/record/817758