Pseudosirenites
Pseudosirenites is a genus of Upper Triassic ammonites belonging to the ceratitid family Trachyceratidae, like Sirenites, but with a narrow outer rim that has a nodose keel on either side.
Pseudosirenites is a genus of Upper Triassic ammonites belonging to the ceratitid family Trachyceratidae, like Sirenites, but with a narrow outer rim that has a nodose keel on either side.