''Diamanticeras'' is an extinct genus of

Cretaceous The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of th ...

-aged

ammonite Ammonoids are a group of extinct marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs, commonly referred to as ammonites, are more closely related to living coleoids (i.e., octopuses, squid and cuttlefish) ...

cephalopod A cephalopod is any member of the molluscan class Cephalopoda (Greek plural , ; "head-feet") such as a squid, octopus, cuttlefish, or nautilus. These exclusively marine animals are characterized by bilateral body symmetry, a prominent head ...

belonging to the family

Crioceratitidae Crioceratitidae is an extinct cephalopod family belonging to the subclass Ammonoidea and included in the order Ammonitida. Genera * ''Acantholytoceras'' Spath, 1932 * '' Balearites'' Sarkar, 1954 * ''Crioceratites'' Leveillé, 1837 * '' Diamant ...

. It is probably phyletically linked to genus ''

Crioceratites ''Crioceratites'' is an ammonite genus from the Early Cretaceous belonging to the Ancyloceratoidea. ''Crioceratites'' was formerly included in the Ancyloceratidae, in the subfamily Crioceratinae which was subsequently elevated in rank to the fa ...

''.VERMEULEN, Jean. Vers une nouvelle classification afondement phylogénétique des ammonites hétéromorphes du Crétacé inférieur méditerranéen. Le cas des Crioceratitidae GILL, 1871, 69-92. Their fossils were found in Chile and Argentina.MOURGUES, Francisco Amaro. Advances in ammonite biostratigraphy of the marine Atacama basin (Lower Cretaceous), northern Chile, and its relationship with the Neuquén basin, Argentina. Journal of South American Earth Sciences, 2004, 17.1: 3-10.

Description

This genus is a lineage of non-tuberculate species that is characteristic by its rewinded shells. Primary ribs are rounded, wide, sometimes bifurcating. They are crossing the venter without interruption and can be paired. Secondary ribs are more or less vigorous, weakened or erased at venter and they are also usually simple.

References

Ammonitida genera Crioceratitidae Early Cretaceous ammonites Hauterivian life {{Ammonitida-stub