Beneckeia shells are compressed smooth oxycones , involute with sharp venters .
Beneckeia is a genus of Lower to Middle Triassic ammonites included in the ceratitid family Beneckeiidae found e.g. in Germany , Poland , and Israel .
genus shells are compressed smooth oxycones , involute with sharp venters .
Beneckeia is a genus of Lower to Middle Triassic ammonites included in the ceratitid family Beneckeiidae found e.g. in Germany , Poland , and Israel .