Parker doesn't say, but this sounds like a rehash of the old creationist canard that Dubois eventually decided that the Java Man skullcap was just
a giant gibbon and nothing to do with human evolution.
Not exact matches
German scientists tended to the view that the skullcap was that of a
giant ape such as a
gibbon, while English scientists tended to view it as a human, coming from either a primitive or a pathological individual, but there were plenty of other opinions.
Other animals in the collection include hornbill birds,
giant flying squirrels,
gibbons and the Asian bearcat.