Paleontology sometimes seems like a kind of imaginative Rorschach test with the flattened fauna of roadkill.
The dominant pattern in the fossil record is explosions of new biological forms. The Cambrian explosion is a prime example.
There is clearly a pattern of discontinuities that requires an adequate explanation, and Darwinism is not it.
I urge you to review this important series. Humbly place it at the feet of your favorite Darwinist, atheist, or theistic evolutionist.
If identified as an animal, it would “predate the Cambrian explosion of bilaterian animal phyla as a kind of ‘advance guard.’”