[2][3] Conomedusites is believed to have been part of the phylum Cnidaria due to its similar structure to jellyfish and other cnidarians, but this is not known for certain.

[5] These organisms appeared to live in communities, as many of the specimens occurred together in pairs on small rock slabs.

[5] In South Australia, fossilized Conomedusites were found in the lower surfaces of quartzite slabs and were preserved as casts.

[1] The specimens were discovered in South Australia and are thought to have been deposited in a shallow marine environment, close to the shoreline.

[5] However, it is distinguished by the absence of fine radial striation, and the presence of indistinct coarse concentric rugosities.