This is possibly a duplicate genus entry of Mesodiadema (taxon 32875) in Sepkoski's Compendium, but leaving them separate for now given widespread recognition in the literature (e.g., Smith, 2000; Kroh, 2011) that these forms are likely a different genus than the other forms.
Parent taxon: Cidaroida according to J. J., Jr. Sepkoski 2002
Sister taxa: Cidaridea, Delocidaris, Diplocidaridae, Fellius, Heterocidaridae, Hirudocidaris, Histocidaridea, Leurocidaris, Menocidaris, Mikrocidari, Minicidaris, Miocidaridae, Oedematocidaris, Palmerius, Paracidaridae, Polycidaridae, Prophyllacanthus, Rhabdocidaridae, Serpianotiaridae, Triadotiaridae
Subtaxa: none
Ecology: slow-moving low-level epifaunal grazer-omnivore
Distribution:
• Triassic of China (1 collection), East Timor (1)
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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