Random triples
| Subject | Object |
|---|---|
| gptkb:Lithostrotion_sociale | extinct |
| gptkb:Hurdia | extinct |
| gptkb:Lepidodendron | extinct |
| gptkb:Wiwaxiidae | extinct |
| gptkb:Tribrachidium | extinct |
| gptkb:Namacalathus_hermanastes | extinct |
| gptkb:Sigillaria | extinct |
| gptkb:Proarticulata | extinct |
| gptkb:Dibunophyllum_coral | extinct |
| gptkb:Pharyngolepis | extinct |
| gptkb:Pelorovis | extinct |
| gptkb:Protoceratidae | extinct |
| gptkb:Porzana_severnsi | prehistoric extinction |