Evans et al. (2021) seem to have been well aware of the circular reasoning in their argument.
The new fossils stem from a layer in the Nama Group of Namibia, just below an ash bed that could be radiometrically dated to 547.32 ± 0.65 million years.
The fossilization of Kimberella specimens was most likely based on rapid burial with sand during storm events.
The evidence poses a significant problem for the Darwinian mechanistic paradigm, but can be readily explained with an intelligent design approach.
Certainly, we find organisms that are “morphologically intermediate,” bearing resemblances to organisms that came before and others that came later.