Random triples
| Subject | Object |
|---|---|
| gptkb:Acanthoceras | tuberculate |
| gptkb:Lytoceras | ribbed |
| gptkb:Kosmoceratidae | tuberculate |
| gptkb:Rhynchonellida | strongly ribbed |
| gptkb:Kosmoceratidae | ribbed |
| gptkb:Hammatoceratidae | keeled |
| gptkb:Lytoceras | smooth |
| gptkb:Murex_(sea_snail) | spines |
| gptkb:Perisphinctes | ribbed |
| gptkb:Oxynoticeratidae | smooth or weakly ribbed |
| gptkb:Murex_(sea_snail) | tubercles |
| gptkb:Mortoniceras | ribbed |
| gptkb:Acanthoceras | ribbed |
| gptkb:Placenticeras | smooth |
| gptkb:Murex_(sea_snail) | axial ribs |
| gptkb:Leptaena | growth lines |
| gptkb:Murex_(sea_snail) | ridges |
| gptkb:Aspidoceras | tuberculate |
| gptkb:Paracymatoceras | ribbed |
| gptkb:Desmoceras | smooth |