Family Stomopneustidae Mortensen 1903 (sea urchin)

Echinoidea - Stomopneustoida - Stomopneustidae

Full reference: T. Mortensen. 1903. The Danish Ingolf-Expedition 1895–1896. Vol. 4, No. 2. Echinoidea, pt. 1. Bianco Luno, Copenhagen 1-198

Parent taxon: Stomopneustoida according to A. Kroh and A. B. Smith 2010

See also Parma and Casadío 2005

Sister taxa: Glyptocidaridae, Stomechinidae

Subtaxa: Gomphechinus Parastomechinus

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Ecology: epifaunal grazer-deposit feeder

Distribution:

• Cretaceous of Argentina (1 collection)

• Jurassic of United States (1: Wyoming)

Total: 2 collections each including a single occurrence

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