Cephalopoda - Ammonitida - Sonniniidae

Full reference: R. L. Hall. 1989. Lower Bajocian ammonites (Middle Jurassic; Soninniidae) from the Newmarracarra Limestone, Western Australia. Alcheringa 13:1-20

Parent taxon: Witchelliinae according to M. K. Howarth 2013

See also Hall 1989 and Sepkoski 2002

Sister taxa: Asthenoceras, Dorsetensia, Fontannesia, Guhsania, Witchellia

Subtaxa: Newmarracarroceras clarkei Newmarracarroceras fairbridgei

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Type: Ammonites (Dorsetensia) clarkei

Ecology: fast-moving nektonic carnivore

Distribution:

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Specimen images are retrieved through the ePANDDA API.