View attachment 234003briefly, here they are arranged by the approximate dates . Specifically you want a chance to move the goalposts because you know that it’s rarely possible to show a ancestor to direct descendent relationship with fossils . However, you can show that a fossil organism is a close relative and that taken as a whole the fossil record does show common descent. This and modern animal anatomical studies was enough to convince the 19th century scientific community of common descent. Modern scientists also have confirming evidence with genetics.
As far as humans being Primates, Linnaeus challenged all of his contemporaries to demonstrate anatomically that they weren’t . They couldn’t . Some modern primatologists , who actually study Primates, think of humans as a type of chimpanzee . Behaviorally we’re between chimps and bonobos . Anatomically we’re the outliers because we don’t treeswing and we can run and walk upright.