Arietitidae
Arietitidae is a family of true ammonites that make up part of the superfamily Psilocerataceae. They comprise medium-size to large or gigantic genera which in general are strongly ribbed, tuberculate in some, with keeled or grooved and keeled venters, and well differentiated ammonitic sutures. The aptycus is single valved with a shiny, concentrically striated surface. Arietitidae dominated Lower Jurassic, Sinemurian ammonites, worldwide, extending into the lower Pliensbachian.
primaryTopic
Arietitidae
Arietitidae is a family of true ammonites that make up part of the superfamily Psilocerataceae. They comprise medium-size to large or gigantic genera which in general are strongly ribbed, tuberculate in some, with keeled or grooved and keeled venters, and well differentiated ammonitic sutures. The aptycus is single valved with a shiny, concentrically striated surface. Arietitidae dominated Lower Jurassic, Sinemurian ammonites, worldwide, extending into the lower Pliensbachian.
has abstract
Arietitidae is a family of tru ...... urce for the Oxynoticeratidae.
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Wikipage page ID
29,332,548
Wikipage revision ID
741,763,473
authority
image caption
Asteroceras stellare
image width
subdivision
* Alsatitinae
* Arietitinae
* ...... ceratinae
* Hypasteroceratinae
subdivision ranks
taxon
comment
Arietitidae is a family of tru ...... into the lower Pliensbachian.
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label
Arietitidae
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