1959 Sporadoceras heterolobatum var. globulosa Petter,
p.276, pl.22 fig.12, textfig.58F.
? 1971 Sporadoceras (Sporadoceras) globulosum.-Bogoslovsky,
p.149, pl.11 fig.2.

2015 Sporadoceras globulosum. -Korn et al., 2015, p. 58.

Juveniles thinly globular and subinvolute (ww/dm ~ 0.90; uw/dm ~ 0.25 at 2 mm dm), subadult stage thickly

pachyconic and involute (ww/dm ~ 0.75; uw/ dm ~ 0.05 at 20 mm dm), adult stage thinly pachyconic and involute

(ww/dm ~ 0.60 at 50 mm dm); umbilicus closed at ~ 25 mm dm. Whorl cross section strongly depressed in

the juveniles (ww/wh = 2.00-2.30 at 2-3 mm dm) and weakly depressed in adults (ww/wh = 1.00-1.10 at

50 mm dm); "Sporadoceras globulosum closely resembles S. muensteri and differs only in the much narrower secondary

adventive lobe." "Concavo-convex constrictions on the internal mould in

the juvenile and subadult stage."(Korn et al., 2015, p. 60).

Lectotype. Specimen MNHN.F.R62795; illustrated by Petter (1959, pl. 12, fig. 12). Designated by Korn et al., 2015, p. 58.