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| Jurassic Gastropods ...modern families emerge |
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| Amberleya ornata Inferior Oolite |
| Symmetrocapulus tessoni Bathonian |
| Purpuroidea lycettea Bathonian |
| Melanioptyxis altararis Bathonian |
| Eucyclus sp. Callovian |
| Amphitrochus subduplicatus Upper Toarcian |
| Islipia lycetti Bathonian |
| Eucyclus subangulatus Upper Toarcian |
| Coelodiscus minitus |
| Volitica meriani Callovian |
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