Aulacostephanidae

Extinct family of molluscs

Aulacostephanidae

Temporal range: Jurassic (Oxfordian-Tithonian), 160–150.8 Ma

PreꞒ

Fossil shell of Rasenia cymodoce from Calvados (France), on display at Galerie de paléontologie et d'anatomie comparée in Paris
Scientific classification
Domain:  | Eukaryota
Kingdom:  | Animalia
Phylum:  | Mollusca
Class:  | Cephalopoda
Subclass:  | †Ammonoidea
Order:  | †Ammonitida
Superfamily:  | †Perisphinctoidea
Family:  | †Aulacostephanidae
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

[edit]

Genera within this family include:[1][2]

* Aulacostephanus
* Pictonia
* Rasenia
* Ringsteadia

## References

[edit]

1. ^ Paleobiology Database
2. ^ Sepkoski Online

* JOHN K. WRIGHT The Aulacostephanidae (Ammonoidea) of the Oxfordian/Kimmeridgian boundary beds (Upper Jurassic) of southern England
* Ammonites Archived 2021-05-14 at the Wayback Machine

Taxon identifiers

Aulacostephanidae|

* Wikidata: Q18355394
* CoL: 6X2
* GBIF: 4625136
* IRMNG: 112573
* Open Tree of Life: 2871707
* Paleobiology Database: 309562

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