n.a supposedly primitive man later proven to be a hoax
同义词：Piltdown hoax
英汉双解大词典
Piltdown man/ˈpɪltˌdaʊn/
1.
N（名词）
an advanced hominid postulated from fossil bones found in Sussex in 1912, but shown by modern dating methods in 1953 to be a hoax, which was perpetrated by a student museum assistant who was refused a wage 辟尔唐人; 在英国辟尔唐地区发现的头盖骨,为伪造的原始人类化石