Cephalopoda - Ammonitida - Eoderoceratidae

Full reference: M. Edmunds, J. Whicher, P. Langham and R. B. Chandler. 2016. A systematic account of the ammonite faunas of the Obtusum Zone (Sinemurian Stage, Lower Jurassic) from Marston Magna, Somerset, UK. Proceedings of the Geologists' Association 127:146-171

Parent taxon: Promicroceras according to M. Edmunds et al. 2016

Sister taxa: Promicroceras perplanicosta, Promicroceras planicosta

Subtaxa: Promicroceras (Leptomicroceras) cowapi

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Type: Promicroceras (Leptomicroceras) cowapi

Ecology: fast-moving nektonic carnivore

Distribution: found only at Marston Magna, dsn nodule layer (Jurassic of the United Kingdom)

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