Because there still aren't enough drepanosaurs around.
Drepanosaurus unguicaudatus, the weird Late Triassic protorosaur that looks like a cross between a chameleon and an anteater. This half-meter-long creature had a bird-like head, huge scythe-like claws like an anteater and a prehensile tail with a weird little claw at the tip. It probably lived pretty much like a pygmy anteater, which it resembles quite a bit. Despite being approximately lizard-shaped, Drepanosaurus was more closely related to such Triassic oddball animals as Tanystropheus and Langobardisaurus.
Drawn in MyPaint, colored in Photoshop.
On hindsight, the tail might be too thick, as it seems to be referred as "leaf-shaped" in some texts.