Beneckeia
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''Beneckeia'' is a genus of Lower to Middle
Triassic The Triassic ( ) is a geologic period and system which spans 50.6 million years from the end of the Permian Period 251.902 million years ago ( Mya), to the beginning of the Jurassic Period 201.36 Mya. The Triassic is the first and shortest period ...
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 included in 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 Beneckeiidae found e.g. in Germany, Poland, and Israel. ''Beneckeia'' shells are compressed smooth oxycones, involute with sharp venters. Sutures are multilobed with small adventitious lobes.


References

* Arkell, W.J, ''et al'', 1957. Treatise on Invertebrate Paleontology Part L Mollusca 4; Geological Society of America and University of Kansas Press.
''Beneckeia''
Paleobiology Database 14 Mar 2013. Triassic ammonites Ceratitida genera Ammonites of Europe Early Triassic genus first appearances Middle Triassic genus extinctions {{Ceratitida-stub