- The
Ptychitidae is a
family of
ceratitid ammonites (ammonites
sensu lato). They are
combined with the
Eosagenitidae and
Sturiidae in the
superfamily Ptychitoidea...
-
Previously the
Nannitidae was
included in the
Ptychitaceae along with the
Ptychitidae and, Isculitidae.
Nannites is very small, subglobose,
generally evolute...
- the
ceratitid family Ptychitidae, and
related to such
genera as
Ptychites and Aristoptychites; all from the Tri****ic. The
Ptychitidae, to
which Arctoptychites...
-
present configuration the
Ptychitoidea includes three families, the:
Ptychitidae Eosagenitidae Sturiidae This
differs from the
taxonomy in the Treatise...
-
Ptychites is an
extinct genus of
cephalopods belonging to the
family Ptychitidae.
These n****nic
carnivores lived during the Tri****ic period, from Anisian...
-
Treatise on
Invertebrate Paleontology, Part L, 1957,
includes Sturia in the
Ptychitidae,
along with such
genera as Ptychites, Discoptychites, Aristoptychites...
-
dorsal side.
Ussuria somewhat resembles Sturia,
commonly placed in the
Ptychitidae. The
early growth stages of
Ussuria are like Dimorphoceras, the intermediate...
- Kingdom:
Animalia Phylum:
Mollusca class:
Cephalopoda Subclass: †Ammonoidea Order: †Ceratitida Family: †
Ptychitidae Genus: †Aristoptychites Diener, 1916...
