Clade Polyodonti Jaekel 1911 (paddlefish)
Osteichthyes - Acipenseriformes - Polyodontidae
Full reference: O. Jaekel. 1911. Die Wirbeltiere. Eine Übersicht über die Fossilen und Lebenden Formen [The Vertebrates. An Overview of the Fossil and Living Forms] viii-252
Parent taxon: Protopsephurinae according to L. Grande and W. E. Bemis 1996
Sister taxon: Protopsephurus
Subtaxa: none
Ecology: nektobenthic carnivore
Distribution:
• Paleocene of United States (1: Montana collection)
• Cretaceous of United States (5: Montana, New Mexico, Wyoming)
Total: 6 collections each including a single occurrence