''Algericeras'' is an extinct

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) ...

genus belonging to the superfamily

Acanthoceratoidea Acanthoceratoidea, formerly Acanthocerataceae, is a superfamily of Upper Cretaceous ammonoid cephalopods belonging to the order Ammonitida, and comprising some 10 or so families.W.J Arkell ''et al''., Mesozoic Ammonoidea; Treatise on Invertebrate ...

that lived during the

Cenomanian The Cenomanian is, in the ICS' geological timescale, the oldest or earliest age of the Late Cretaceous Epoch or the lowest stage of the Upper Cretaceous Series. An age is a unit of geochronology; it is a unit of time; the stage is a unit in the s ...

stage at the beginning of the Late Cretaceous in what is now Mexico. ''Algericeras'' is included in the acathoceratacean family Brancoceratidae and subfamily Mortonoceratinae. Species include ''Algericeras (Sakondryella) remolinense'' and ''Algericeras proratum''

''References''

Algericeras-Paleodb
* W. J. Kennedy and C. W. Wright. 1981. Euhystrichoceras and Algericeras, the Last Mortoniceratine ammonites. Palaeontology 24(2):417-435 Ammonitida genera Acanthoceratoidea Late Cretaceous ammonites Late Cretaceous ammonites of North America Cretaceous Mexico Late Cretaceous cephalopods of North America Fossils of Mexico Cenomanian life {{Ammonitina-stub