Possible ancestor of sponges found

An exquisitely preserved 600-million-year-old fossil from China has cell types and a shape resembling sponges, thought to be among the first multicellular animals to evolve.

Sponge-like creatures living 750 million years ago identified as ancestors of humans – and all other animals, The Independent

What did the earliest animals look like?

Did all animal life on Earth begin with a sea sponge?

Ancestor of All Animals: the Sponge?

Last common ancestor of all animals was likely: - ppt video online download

Why are sponges considered unique in the evolution of animals? - Quora

Porifera Organismal Diversity

Earliest animals developed later than assumed

Early animal evolution: a morphologist's view