Sorry, wrong. It is clearly past tense of “bear” that needs to be used. “Bared” is a verb as opposed to adjective “bare”. No relation at all.
I disagree. The sentence reads: “ it was ruled that the two skeletons bared too many similarities and were different species of the same genus, which was called the apatosaurus.” Bare is defined in Merriam Webster Dictionary as: Bare vb bared, baring : to make or lay bare : UNCOVER. In other words to disclose, which I believe is what the authors meant. Bare is also listed as an adverb there.