| Citation | Littlewood, D.T.J. and A.B. Smith 1995 A combined morphological and molecular phylogeny for sea urchins (Echinoidea: Echinodermata). Philosophical Transactions: Biological Science 347(1320):213-234. |
| DOI / ISBN | |
| Paper URL | |
| Ref. No. | 77922 |
| Language | English |
| Usage | used in part |
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