-
ammonite Barroisiceras B.
onilahyense An
Collignoniceratidae ammonite Prionocyclus P.
germari An
Collignoniceratidae ammonite Subprionocyclus An Collignoniceratidae...
- (Gryposaurus sp.)
Stegoceras sp.
Deinosuchus sp.
Mortoniceras Brancoceras Prionocyclus Coilopoceras Acanthoceras Acompsoceras Romaniceras Mammites Pseudothurmannia...
-
Ammonite biozones Genus Species Date
Error +/-
Stage Prionocyclus hyatti 92.46 0.58
Middle Turonian Collignoniceras praecox - -
Middle Turonian Collignoniceras...
-
Neocardioceras was
proposed by Spath, 1926, for
ammonites "resembling
Prionocyclus M****,
except for the
Quenstedtoceras keel". Wright, 1957, subsequently...
-
Preshumardites Presimoceras Pricella Prionites Prionoceras Prionocycloceras Prionocyclus Prionodoceras Proarcestes Proavites Probeloceras Procarnites Procerites...
- †Placenticeras
pseudoplacenta Polinices †Polinices
concinna †
Prionocyclus †
Prionocyclus novimexic**** †Protolamna †Protolamna
gigantea – type locality...
- for
species †Podozamites †Podozamites
lanceolatus †
Prionocyclus †
Prionocyclus macombi †
Prionocyclus novimexic**** †Prognathodon †Prognathodon overtoni...
-
Collignonicerites Kennedy et al., 2001
Genus Prionocy****es Kennedy, 1988
Genus Prionocyclus M****, 1876
Genus Reesidites Wright & Matsumoto, 1954
Genus Subprionotropis...
- The
formation spans the
ammonite zones of
Collignoniceras woollgari,
Prionocyclus percarinatus, P. hyatti, and P. macombit,
indicating that the formation...
- †Prionochelys †Prionochelys
galeotergum – type
locality for
species †
Prionocyclus †
Prionocyclus hyatti †Prisca –
tentative report †Protocardia †Protocardia texana...
