'''Antalavis''' is
genus of prehistoric
birds related to
ducks and
geese, perhaps in particular the
Magpie-goose. The
species '''Anatalavis rex''' - formerly placed in ''
Telmatornis'' - is known from the Hornerstown Formation (
Late Cretaceous or
Early Paleocene, some 65
million years ago) of
New Jersey. '''Anatalavis oxfordi''' was described based on
fossils found in the
Early Eocene London Clay (some 56-49 mya) at
Walton-on-the-Naze,
England.