Sea creatures add branch to tree of life

@article{Skinner2014SeaCA,
  title={Sea creatures add branch to tree of life},
  author={Nicole Skinner},
  journal={Nature},
  year={2014}
}
Invertebrates found in Australia in the 1980s do not fit in any known group. 

References

Dendrogramma, New Genus, with Two New Non-Bilaterian Species from the Marine Bathyal of Southeastern Australia (Animalia, Metazoa incertae sedis) – with Similarities to Some Medusoids from the Precambrian Ediacara

A new genus, Dendrogramma, with two new species of multicellular, non-bilaterian, mesogleal animals with some bilateral aspects, D. enigmatica and D. discoides, are described from the south-east Australian bathyal and are referred to Metazoa incertae sedis.