Clark, H. L. (1923). Some Echinoderms from West Australia. <em>Journal of the Linnean Society of London, Zoology.</em> 35: 229-251, one plate., available online athttps://www.biodiversitylibrary.org/page/31757318 page(s): 241 [details]
Mah, C.L. (2021). World Asteroidea Database. Petricia obesa H.L. Clark, 1923. Accessed at: http://marinespecies.org/Asteroidea/aphia.php?p=taxdetails&id=378565 on 2024-07-22
original descriptionClark, H. L. (1923). Some Echinoderms from West Australia. <em>Journal of the Linnean Society of London, Zoology.</em> 35: 229-251, one plate., available online athttps://www.biodiversitylibrary.org/page/31757318 page(s): 241 [details]