''Mantelliceras'' is an extinct

ammonoid 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 ...

genus belonging to the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Acanthoceratidae Acanthoceratidae is an extinct family of acanthoceratoid cephalopods in the order Ammonitida, known from the Upper Cretaceous. The type genus is '' Acanthoceras''. Diagnosis Acanthoceratidae species are strongly tuberculate with at least umbil ...

and type for the subfamily Mantelliceratinae,Biolib
/ref> that lived from the Late

Albian The Albian is both an age of the geologic timescale and a stage in the stratigraphic column. It is the youngest or uppermost subdivision of the Early/Lower Cretaceous Epoch/Series. Its approximate time range is 113.0 ± 1.0 Ma to 100.5 ± 0.9 M ...

to the late

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 of the Late

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 ...

Description

''Mantelliceras'' is characterized by a strongly ribbed, moderately involute shell with a moderately wide umbilicus, and rounded whorl section. The final whorl leaves inner whorls partly exposed. High standing ribs cross over the venter smoothly. Primary ribs arise from the umbilical wall. Secondaries, usually one per intervening space, arise higher on the flanks. Species of ''Mantelliceras'' are known to reach a diameter of about 13 centimeters.

Distribution

Species of ''Mantelliceras have been found in

sediments in

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, the

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, and

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Species

Species of ''Manatelliceras'' include: * ''M. brazoense'' Böse 1928 * ''M. cantianum'' Spath 1926 * ''M. charlestoni'' Kellum & Mintz 1962 * ''M. corroyi'' Fabre 1940 * ''M. lymense'' Spath 1926 * ''M. mantelli'' Sowerby 1814 * ''M. portalesi'' Kellum & Mintz 1962 * ''M. saxbii'' Sharpe 1857 * ''M. wacoense'' Böse 1928

References

* W.J. Arkell, et al. 1957. Mesozoic Ammonoidea; Treatise on Invertebrate Paleontology, Part L, Mollusca 4. Geological Society of America and University of Kansas Press. Ammonitida genera Late Cretaceous ammonites of Europe Fossil taxa described in 1903 Ammonites of Europe Albian genus first appearances Cenomanian genus extinctions Acanthoceratidae {{Cretaceous-animal-stub