Noun
The presence of hypsodont teeth.
The degree to which teeth are hypsodont; the degree to which they are not brachydont.
Source: en.wiktionary.orgMany ungulates switched from browsing diets to grazing diets, and possibly driven by abrasive silica in grass, hypsodonty became common. Source: Internet
The development of hypsodonty has been of particular interest as this adaptation was strongly associated with the spread of grasslands during the Miocene about 25 million years. Source: Internet