| Lytoceratinae Temporal range:
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| Fossil shells of Protetragonites obliquestrangulatum from Alpes-de-Haute-Provence, on display at Galerie de paléontologie et d'anatomie comparée in Paris | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Ammonitida |
| Family: | †Lytoceratidae |
| Subfamily: | †Lytoceratinae Neumayr,1875 |
| Genera | |
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Lytoceratinae is a subfamily of ammonoid cephalopods that make up part of the family Lytoceratidae.