Sphenodiscus lobatus Tuomey 1856 (ammonite)

Cephalopoda - Ammonitida - Sphenodiscidae

Alternative combination: Ammonites lobata

Invalid subtaxa: Ammonites lenticularis Owen 1852 [replaced name], Sphenodiscus lenticularis Owen 1852 [replaced name]

Belongs to Sphenodiscus according to W. J. Kennedy et al. 1997

See also Al-Harithi and Ibrahim 1992, Böse 1928, Kennedy 1986, Kennedy and Cobban 1996, Zaborski 1982 and Zaborski 1985

Sister taxa: Sphenodiscus aberrans, Sphenodiscus binkhorsti, Sphenodiscus brasiliensis, Sphenodiscus intermedius, Sphenodiscus parahybensis, Sphenodiscus pleurisepta, Sphenodiscus prepleurisepta, Sphenodiscus siva, Sphenodiscus ubaghsi

Ecology: fast-moving nektonic carnivore

Average measurements (in mm): shell diameter 104.7


• Cretaceous to Paleogene of United States (1: New Jersey collection)

• Cretaceous of Jordan (3), Nigeria (3), United States (13: Alabama, Maryland, Mississippi, Missouri, New Jersey, South Carolina)

Total: 20 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.

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