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Trimarginia Arkell 1952 (ammonite)

Cephalopoda - Ammonitida - Oppeliidae

PaleoDB taxon number: 15758

Full reference: W. J. Arkell. 1952. Jurassic ammonites from Jebel Tuwaiq, central Arabia. Philosophical Transactions of the Royal Society of London, Series B, Biological Sciences 236:241-313

Parent taxon: Oppeliinae according to W. J. Arkell et al. 1957

Sister taxa: Bradfordia, Magharina, Oecotraustes, Paralcidia, Stegoxyites, Strungia

Subtaxa: Trimarginia sinaitica

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Type: Trimarginia sinaitica

Ecology: fast-moving nektonic carnivore