They found bones scattered over a very broad area, lumped them together and called them "Lucy"... these included various bones and a jaw... No proof that they are all even from the same animal/person/thing. But hey - it fits a narrative. But regardless - there are NOT enough bones here, even if we assume they are from one individual specimen, to recreate what they are claiming.
Here is the grand total of bones found (and again, no evidence they are from ONE individual):
