"e. eocaenus" was somewhat ponderous, at about the body size of "mullerornis betsilei". as this was one of the heavy-boned elephant birds, "eremopezus" was probably lighter than it, especially if it retained the air-filled bones of flying ancestors. from the ground to the pelvis, it stood probably as high as a large rhea or small emu—slightly less than one meter in all probability –, though the robust bones of the prehistoric bird appear to have supported a larger bulk than those of the fleet-footed ratites. altogether, even if it was not particularly long-necked "eremopezus" must have stood about as high as an average adult human. it weighed probably less than 50 kg—slightly more than a large emu—and more than 10 kg—slightly more than the largest living storks (which reach over 150 cm in height) and the shoebill.