Kimberella quadrata


 * When = 558-555 mya


 * Kingdom = Animalia


 * Phylum = ?Mollusca?


 * Class = ???


 * Order = Kimberellida


 * Family = Kimberellidae


 * Genus = Kimberella

Kimberella is an extinct genus of an unknown phylum. Recent studies have shown that Kimberella was a mollusc, but its true affinity remains unknown. The genus includes one species, K. quadrata.