an example list of ancient Greek philosophers' lifespans, with data taken from Wikipedia, was provided:
According to relevant WPedia articles: Hippocrates: 90yo; Thales 78yo; Archimedes 75yo (violent death); Euclid unknown; Pythagoras ca 75yo; Aristotle ca 62yo; Socrates 71yo (was executed); Plato 80yo; Epicurus ca70yo; Zeno of Citium ca 70 yo; Zeno of Elea ca 60 yo. So yeah, while there were not that many 80s and 90s, they WERE happening, with the average, seemingly, still above 70 yo
In a comment below @Konrad Rudolph questioned this list's validity:
Thanks, that’s a nice list (I should have checked myself). It’s also, very obviously, complete fiction. But that isn’t your fault of course. It’s just a reminder that records from that era aren’t always reliable.
If I understand Konrad Rudolph's point correctly, he wanted to say that, while the list correctly compiles available data from ancient times, the original birth and date records from that period were wrong.
I came pretty harsh on Konrad Rudolph ("Saying that XYZ is complete fiction without backing it up, really?"), since I perceived his comments as repeating the same dogma over and over, without citing any sources nor facts to back it up; I said it before checking his profile and finding out he was a scienist. Thus, since he's a scientist, who specializes in genetics, he should be competent enough on this field; so, probably, his claims shouldn't be rejected a priori only on the basis of the lack of citations.
Therefore let me ask: Are there any sources confirming the claim that dates of birth and death of people from ancient times are wrong to the point of being a "complete fiction"?