''Alloceratites'' is a genus of

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) ...

cephalopods from the

Middle Triassic In the geologic timescale, the Middle Triassic is the second of three epochs of the Triassic period or the middle of three series in which the Triassic system is divided in chronostratigraphy. The Middle Triassic spans the time between Ma and ...

of Germany included in the family

Ceratitidae ''Ceratitidae'' is an extinct family of ammonite cephalopods. Fossils of ''Ceratitidae'' are found in the Triassic marine strata throughout the world, including Asia, Europe, the Middle East, North America, and Oceania. Selected genera Subfam ...

. The mature shell of ''Alloceratites'' has strong, well spaced lateral tubercles and clavi (nodes) along either side of the venter. Ribbing between tubercles is indistinct. The suture is ceratitic.

References

* Arkell, et al. 1957. Mesozoic Ammonoidea; Treatise on Invertebrate Paleontology. Geol. Soc. of America and Univ. Kans. Press. Ceratitidae Ceratitida genera Middle Triassic ammonites Triassic ammonites of Europe {{Ceratitida-stub