†family Potamogetonaceae Reichenbach 1823
PaleoDB taxon number: 55795
Parent taxon: Alismatales according to D.J. Mabberley 2000
Sister taxa: Alismataceae, Aponogetonaceae, Araceae, Butomaceae, Cymodoceaceae, Juncaginaceae, Najadaceae, Pennipollis, Posidoniaceae, Ruppiaceae, Scheuchzeriaceae, Thalassocharis, Zannichelliaceae, Zosteraceae
Subtaxa: Baibiancarpus, Palaeopotamogeton, Potamogetonacecarpum, Potamogetophyllum
Ecology: "photoautotroph"