Random triples
| Subject | Object |
|---|---|
| gptkb:Murex_(sea_snail) | ridges |
| gptkb:Placenticeras | smooth |
| gptkb:Lytoceras | ribbed |
| gptkb:Oxynoticeratidae | smooth or weakly ribbed |
| gptkb:Acanthoceras | ribbed |
| gptkb:Aspidoceras | tuberculate |
| gptkb:Murex_(sea_snail) | lamellae |
| gptkb:Aspidoceras | ribbed |
| gptkb:Murex_(sea_snail) | nodes |
| gptkb:Cymatoceratidae | ribbed |
| gptkb:Kosmoceratidae | tuberculate |
| gptkb:Mortoniceras | tuberculate |
| gptkb:Placenticeras | weakly ribbed |
| gptkb:Murex_(sea_snail) | tubercles |
| gptkb:Kosmoceratidae | ribbed |
| gptkb:Mortoniceras | ribbed |
| gptkb:Murex_(sea_snail) | axial ribs |
| gptkb:Paracymatoceras | ribbed |
| gptkb:Desmoceras | smooth |
| gptkb:Leptaena | radiating ribs |