Abundance: 0.10 to 25.86% (median 7.78%)

Latitudinal range: 37.4° to 47.7°

Habitats: (12) only

Found in 12 samples

United States: Gidley Quarry (Early Palaeocene), Chappo Type Locality (Late Palaeocene), Lane's Little Jaw Site (Maastrichtian), Muddy Tork (Maastrichtian), PTRM-V92067 (Maastrichtian), Z-Line Quarry (Early Palaeocene), Z-Line Quarry East (Early Palaeocene), Luck O Hutch (Early Palaeocene), Coke's Clemmys (Early Palaeocene), Mill Creek (MNA locality 1073) (Maastrichtian), Mill Creek (MNA locality 1074) (Maastrichtian), Ferris Formation (UW locality V-91004) (Early Palaeocene)

See also Mesodma, Mesodma ambigua, Mesodma formosa, Mesodma garfieldensis, Mesodma hensleighi, Mesodma pygmaea, Mesodma thompsoni