Dactylioceratidae Temporal range:
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Ammonites of genus Dactylioceras from Schleifhausen (Germany) | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Cephalopoda |
Subclass: | †Ammonoidea |
Order: | †Ammonitida |
Superfamily: | †Eoderoceratoidea |
Family: | †Dactylioceratidae Hyatt, 1867 |
The family Dactylioceratidae comprises Early Jurassic ammonite genera with ribbed and commonly tuberculate shells that resembled later Middle Jurassic stephanoceratids and Upper Jurassic perisphinctids. Shells may be either evolute or involute.