| Citation | Bromley, R.G. and U. Asgaard 1975 Sediment Structures Produced by a Spatangoid Echinoid: A Problem of Preservation. sediment; Echinoidea; Bull. Geol. Soc. Denmark, Vol. 24: 261-28. |
| DOI / ISBN | |
| Paper URL | |
| Ref. No. | 96613 |
| Language | English |
| Usage | used in part |
| Remarks | |
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