Gehling 1987

Gehling, J.G. 1987. Earliest known echinoderm — a new Ediacaran fossil from the Pound Subgroup of South Australia. Alcheringa: An Australasian Journal of Palaeontology 11.4. 337-345.

@article{jacquesestimative-gehling87arkarua,
  author  = {Gehling, J.G.},
  journal = {Alcheringa: An Australasian Journal of Palaeontology},
  pages   = {337-345},
  title   = {Earliest known echinoderm — a new Ediacaran fossil from the Pound Subgroup of South Australia},
  volume  = {11.4},
  year    = {1987}
}