Sentence Correction (SC) | Re: Fossils of a whale that beached on an African shore more than a millio

AndrewN

In options D and E, the usage of having +verb-ed is correct right?
Having + past participle is perfect participle that is used to show an action completed before the main clause. So as per this definition, fossils initially beached on an African American shore and then were discovered by paleontologists. We eliminated options D and E because there is parallelism error. Participles cannot be parallel to verbs.

Is my understanding correct on this?

I have seen few questions on the usage
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