| Melonechinus Temporal range: Carboniferous | |
|---|---|
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| M. indianensis, National Museum of Natural History | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Echinoidea |
| Order: | †Echinocystitoida |
| Genus: | †Melonechinus |
Melonechinus is an extinct genus of echinoid that lived in the Carboniferous. Its remains have been found in North America.
