Ammonellipsites
clitheroensis
Riley, 1996 †
(FOSSIL)

Ammonellipsites
djaprakensis
Librovitch, 1927 †
(FOSSIL)

Ammonellipsites
princeps
(de Koninck, 1844 †)
(FOSSIL)

Ammonellipsites
serus
D. Korn & al., 2010 †
(FOSSIL)

Fascipericyclus
furcatus
(F. McCoy, 1844 †)
(FOSSIL)

Fascipericyclus
costalis
(B. Phillips, 1836 †)
(FOSSIL)

Goniocyclus
elatrous
W. Korn & al., 2002 †
(FOSSIL)

Goniocyclus
hannibalensis
Work, 2002 †
(FOSSIL)

Goniocyclus
antelopensis
Gordon Jr., 1986 †
(FOSSIL)

Goniocyclus
blairi
(Miller & Gurley, 1896 †)
(FOSSIL)

Goniocyclus
cooperi
Gordon Jr., 1986 †
(FOSSIL)

Goniocyclus
costulatus
Gordon Jr., 1986 †
(FOSSIL)

Goniocyclus
decipiens
Gordon Jr., 1986 †
(FOSSIL)

Goniocyclus
filaris
Gordon Jr., 1986 †
(FOSSIL)

Goniocyclus
rockymontanus
Gordon Jr., 1986 †
(FOSSIL)

Helicocyclus
formosus
D. Korn & al., 2010 †
(FOSSIL)

Helicocyclus
fuscus
W. Korn & al., 2003 †
(FOSSIL)

Helicocyclus
inornatus
D. Korn & al., 2010 †
(FOSSIL)

Helicocyclus
laxaris
D. Korn & al., 2010 †
(FOSSIL)

Helicocyclus
tianshanicus
(Librovitch, 1927 †)
(FOSSIL)

Nodopericyclus
circumnodosus
D. Korn & al., 2010 †
(FOSSIL)

Nodopericyclus
deficerus
D. Korn & al., 2010 †
(FOSSIL)

Ouaoufilalites
ouaoufilalensis
W. Korn & al., 2003 †
(FOSSIL)

Pericyclus
intercisus
D. Korn & al., 2010 †
(FOSSIL)

Pericyclus
mercatorius
W. Korn & al., 2003 †
(FOSSIL)

Pericyclus
princeps
(de Koninck, 1843 †)
(FOSSIL)

Pericyclus
tortuosus
D. Korn & al., 2010 †
(FOSSIL)

Pericyclus
trochus
D. Korn & al., 2010 †
(FOSSIL)

Polaricyclus
bordenensis
Work & Mason, 2003 †
(FOSSIL)

Polaricyclus
conkini
Work & Mason, 2004 †
(FOSSIL)

Polaricyclus
minimus
(Hind, 1910 †)
(FOSSIL)