But it's not, of course, so why deny it?
Over 150+ years, fossil evidence produced hundreds of individuals' remains in dozens of different pre-human and early-human species-populations.
Whenever those are dated and lined up in sequence, they result in a gallery such as you see in post #48 above.
So why people would continue refusing to acknowledge "transitional forms" is inexplicable logically.
fishtank: "There is a huge morphological gap between the essentially modern human postcranial skeleton of erectus and that of the australopithecine postcranial skeleton, as represented by Lucy."
But Lucy herself is not included in this particular gallery.
If she were, you'd find her about half-way (= transitional) between the skull marked "A" and the next one marked "B".
She is classified as "Australopithecus afarensis", an ape-like hominid living between 3.9 and 2.5 million years ago.
The next in time were Homo Habilis, from 2.8 to 1.5 million years ago, represented in this particular gallery as skulls D, E, and F.
Then comes erectus, represented here by skulls G & H, and thought to have lived from 1.9 million years ago to relatively recent times, 70,000 years ago.
So consider what-all you are denying when you deny "transitional fossils".