Prodactylioceras

Prodactylioceras Temporal range: Pliensbachian PreЄ Є O S D C P T J K Pg N
P. davoei - type species of genus
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	†Ammonoidea
Order:	†Ammonitida
Family:	†Dactylioceratidae
Subfamily:	†Reynesocoeloceratinae
Genus:	†Prodactylioceras Spath, 1923
Type species
Ammonites davoei Sowerby, 1822
Species
P. davoei Sowerby, 1822 P. nodosissimum Quenstedt, 1885 P. italicum Meneghini et Fucini, 1900 P. colubriforme Bettoni, 1900 P. rectiradiatum Wingrave, 1916 P. aurigeriense Dommergues et al., 1984
Synonyms
Paralytoceras Frebold, 1922 not Paralytoceras Frech, 1902 Praedactylioceras Frentzen, 1937

Prodactylioceras is genus of ammonite that lived during the Pliensbachian stage of early Jurassic. It has evolved from Reynesocoeloceras, but maybe not directly, but through Bettoniceras. Its fossils were found in Europe, Asia and North America.

While sometimes, genus Bettoniceras, which differs from Prodactylioceras only by lacking tubercules is considered valid, in other cases it is considered to be a synonym of this genus. Species as P. italicum, or P. colubriforme would not be in that case belonging to this genus, as they are members of genus Bettoniceras.

Ammonites of this genus had evolute shells, with circular to slightly depressed whorl section. In compressed species, ribs were fine and often prorsiradiate and they were wearing ventrolateral tubercules. In depressed species, ribs are coarser and swolen, while ventrolateral tubercules are larger.