''Anderssonoceras'' is a genus of small, smooth

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) ...

s with a flared umbilical shoulder, like '' Prototoceras'', assigned to the

ceratitid Ceratitida is an order that contains almost all ammonoid cephalopod genera from the Triassic as well as ancestral forms from the Upper Permian, the exception being the phylloceratids which gave rise to the great diversity of post Triassic ammoni ...

family

Anderssonoceratidae Anderssonoceratidae is an extinct family of cephalopods belonging to the Ammonite subclass in the order Ceratitida Ceratitida is an order that contains almost all ammonoid cephalopod genera from the Triassic as well as ancestral forms from the ...

as the type, but once included in the

Otoceratidae Otoceratidae is an extinct family of cephalopods belonging to the Ammonite subclass in the order Ceratitida Ceratitida is an order that contains almost all ammonoid cephalopod genera from the Triassic as well as ancestral forms from the Upper P ...

. ''Anderssonoceras'' comes from the Upper

Permian The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last period of the Paleoz ...

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

References

* Arkell et al., Mesozoic Ammonoidea,

Treatise on Invertebrate Paleontology The ''Treatise on Invertebrate Paleontology'' (or ''TIP'') published by the Geological Society of America and the University of Kansas Press, is a definitive multi-authored work of some 50 volumes, written by more than 300 paleontologists, and co ...

, Part L. Geol Soc of America and Univ Kansas press, 1957. R. C. Moore (ed) * D. Korn 2006 Paleozoic ammonoid classification—rft July 2010

* E. T. Tozer. 1981. Triassic Ammonoidea: Classification, evolution and relationship with Permian and Jurassic Forms. ...- rft July 201

Ceratitida genera Prehistoric animals of China Permian ammonites {{Ammonite-stub