Most eogruids are known from rather sparse remains, mostly the tarso-metatarsals and toes.
The former are generally slender with a distinct crest along the lateral side of the plantar surface.
The trochlea for the second toe shows a progressive reduction along the various taxa, culminating in its utter absence in Amphipelargus.

Other skeletal remains are rare.
Wing elements are known in a few taxa; these are generally highly reduced, suggesting that these birds were flightless.
The exception appears to be Eogrus itself, which does not show much phalange reduction and hypothetically could still fly, though the rest of the postcranial skeleton is already specialised for cursoriality.
Most eogruids are known from rather sparse remains, mostly the tarso-metatarsals and toes. The former are generally slender with a distinct crest along the lateral side of the plantar surface. The trochlea for the second toe shows a progressive reduction along the various taxa, culminating in its utter absence in Amphipelargus.
Other skeletal remains are rare. Wing elements are known in a few taxa; these are generally highly reduced, suggesting that these birds were flightless. The exception appears to be Eogrus itself, which does not show much phalange reduction and hypothetically could still fly, though the rest of the postcranial skeleton is already specialised for cursoriality.
Eogruidae