Assertion: fossil penguin | /r/HasProperty | known to date
Facets:
Source sentences:
text: The upper arm bone, known as the humerus (top) and a bone from the shoulder girdle (coracoid, bottom) of the Paleocene giant penguin Kumimanu biceae, compared with the corresponding bones of one of the largest fossil penguins known to date, Pachydyptes ponderosus (from the Eocene epoch in New Zealand), and those of a modern emperor penguin (Aptenodytes forsteri).