The most celebrated Precambrian sponge may not be a sponge at all. Watch Darwinians try to coax it into spongehood.
The fossil record speaks clearly and cries out loud: the history of life on Earth is a history of saltations.
It is remarkable, indeed, how detailed a medusoid morphology was projected onto Kimberella fossils and later recognized as pure fantasy.
One of the few features that are uncontroversial is the body size: The fossils measure usually 1-5 cm in length.
The fossilization of Kimberella specimens was most likely based on rapid burial with sand during storm events.