Taramelliceras, Del Campana, 1904

Cecca, Fabrizio & Savary, Bérengère, 2007, Palaeontological study of Middle Oxfordian- Early Kimmeridgian (Late Jurassic) ammonites from the Rosso Ammonitico of Monte Inici (north-western Sicily, Italy), Geodiversitas 29 (4), pp. 507-548 : 517

Taramelliceras cf. hauffianum? (Oppel, 1863) ( Fig. 5A, B )

MATERIAL EXAMINED. — MI4W 8b/c/3.

STRATIGRAPHIC DISTRIBUTION. — The specimen has been collected in bed 8c of section Monte Inici West. It must be stressed that the tentative identification of this specimen also makes tentative the assignment of this bed to the Hauffianum Subzone.

DESCRIPTION

The specimen is a fragment of an inner mold. It shows the venter and the upper third of the flank of a portion of the shell that corresponds to the last part of the phragmocone and the beginning of the body chamber.The venter is large and rounded; it gradually passes to the flanks due to the lack of clear ventrolateral shoulders. Rounded tubercles are visible at the transition between the venter and the flanks. One or two ribs spring from the tubercles; three to four simple ribs are intercalated between two tubercles.

Figures

FIG. 5. — A, B, Taramelliceras cf. hauffianum? (Oppel, 1863), specimen MI4W 8b/c/3 from bed 8c of section Monte Inici East: A, lateral (slightly oblique) view; B, ventral view; C, Perisphinctes (Dichotomosphinctes) gr. antecedens? Salfeld, 1914, specimen MI3 9/10 from bed 9 of section Castello Inici; D, Subdiscosphinctes sp., specimen MI4N 9/4 from bed 9 of section Monte Inici East. All figures natural size. Arrows indicate the beginning of the body chamber.