Dipoloceras

Dipoloceras
Temporal range: L Cretaceous (M- U Albian)
Scientific classification
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ammonitida
Suborder: Ammonitina
Superfamily: Acanthocerataceae
Family: Brancoceratidae
Genus: Dipoloceras
Hyatt, 1900

Dipoloceras is a rather evolute, strongly ribbed and well keeled acanthocerataean ammonite from the Albian stage of the Lower Cretaceous included in the brancoceratid subfamily Mojsisovicziinae. The whorl section is typically inflated or depressed. Ribs are high standing, may be sharp, close to wide spaced. The ventral keel may sit below the level of the ribs.

Dipoloceras is similar to but distinct from Oxytropidoceras in that Oxytropidoceras has a compressed whorl section, high standing keel and lower ribs. Both have more or less typical ammonitic sutures.

References

see also illustrations of
Dipoloceras cristatum ,

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