Aythya collaris Donovan 1809 (ring-necked duck)
Reptilia - Anseriformes - Anatidae
PaleoDB taxon number: 336063
Alternative combinations: Anas collaris, Nyroca (Nyroca) collaris, Nyroca collaris
Belongs to Aythya according to J. F. Clements et al. 2017
Sister taxa: Aythya affinis, Aythya americana, Aythya aretina, Aythya arvernensis, Aythya australis, Aythya ferina, Aythya fuligula, Aythya marila, Aythya novaeseelandiae, Aythya nyroca, Aythya sepulta, Aythya spatiosa, Aythya valisineria
Ecology: volant herbivore