Angiospermae - Alismatales - Potamogetonaceae
Parent taxon: Alismatales according to The Angiosperm Phylogeny Group 2016
See also Chandler 1961, Chandler 1963, Daghlian 1981, Knowlton 1919, Knowlton 1926, Mabberley 2000 and Stockmans 1936
Sister taxa: Alismataceae, Aponogetonaceae, Butomaceae, Cymodoceaceae, Hydrocharitaceae, Juncaginaceae, Maundiaceae, Pennipollis, Posidoniaceae, Ruppiaceae, Scheuchzeriaceae, Thalassocharis, Tofieldiaceae, Zannichelliaceae, Zosteraceae
Subtaxa: Baibiancarpus Palaeopotamogeton Potamogeton Potamogetonaceaepites Potamogetonacecarpum Potamogetophyllum
Ecology: "photoautotroph"
Distribution:
• Quaternary of Australia (11 collections), Canada (2: Ontario), India (25), the United Kingdom (3), United States (3: North Carolina, Virginia, Washington)
• Pliocene of China (1), Germany (9), Italy (1), the Russian Federation (1)
• Hemphillian of United States (1: Indiana)
• Miocene to Pliocene of France (1), Germany (1)
• Miocene of Canada (1: Northwest Territories), China (1), Denmark (1), Germany (23), Japan (6), Poland (1), the Russian Federation (17), Turkey (1), United States (2: Idaho, Washington)
• Oligocene to Miocene of Germany (1)
• Oligocene of Germany (3), the Russian Federation (11), the United Kingdom (1), United States (1: Oregon)
• Eocene to Oligocene of United States (2: Colorado)
• Eocene of Canada (1: British Columbia), India (1), the United Kingdom (7), United States (5: Colorado, Georgia, Wyoming)
• Paleogene of Argentina (1)
• Tertiary of Japan (2)
• Cretaceous of China (1), United States (1: South Carolina)
Total: 150 collections including 245 occurrences