Abundance: 1.82 to 9.07% (median 5.13%)

Latitudinal range: 37.4° to 49.3°

Habitats: (6) only

Found in 6 samples

Canada: Gryde (Maastrichtian)

United States: Spigot-Bottle (Maastrichtian), Luck O Hutch (Early Palaeocene), Coke's Clemmys (Early Palaeocene), Mill Creek (MNA locality 1073) (Maastrichtian), Ferris Formation (UW locality V-91004) (Early Palaeocene)

See also Mesodma, Mesodma ambigua, Mesodma formosa, Mesodma garfieldensis, Mesodma pygmaea, Mesodma sp., Mesodma thompsoni