| 词条 | Aulacostephanidae |
| 释义 |
|fossil_range = Jurassic (Oxfordian-Tithonian), {{Fossilrange|160|150.8}} |image = Perisphinctoidea - Rasenia cymodoce.JPG |image_caption = Fossil shell of Rasenia cymodoce from Calvados (France), on display at Galerie de paléontologie et d'anatomie comparée in Paris |taxon = Aulacostephanidae |authority = Spath, 1924 }} Aulacostephanidae is an extinct ammonoid cephalopod family belonging to the superfamily Perisphinctoidea. These fast-moving nektonic carnivores lived during the Upper Jurassic period, from the Oxfordian to Tithonian ages. Genera
References
6 : Ammonitida families|Perisphinctoidea|Jurassic ammonites|Ammonites of Europe|Kimmeridgian first appearances|Late Jurassic extinctions |
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