†Olcostephanus (Jeannoticeras) Thieuloy 1965 (ammonite)

Cephalopoda - Ammonitida - Olcostephanidae

Parent taxon: Olcostephanus according to M. B. Aguirre-Urreta and P. F. Rawson 2001

See also Reboulet 1996

Sister taxa: Olcostephanus (Olcostephanus), Olcostephanus (Viluceras), Olcostephanus astierianus, Olcostephanus atherstoni, Olcostephanus delicatecostatus, Olcostephanus detonii, Olcostephanus paucicostatus, Olcostephanus pecki, Olcostephanus popenoei, Olcostephanus sanlazarensis, Taraisites bosei, Astieria neohispanica, Astieria raricostata, Holcostephanus (Astieria) josephinus, Astieria zacatecana, Astieria bangei, Maderia marcoensis, Maderia marcosensis, Maderia coahuilensis, Maderia casitensis, Subastieria inordinata, Subastieria sulcosus, Subastieria sulcosae, Subastieria balkanica

Subtaxa: Olcostephanus (Jeannoticeras) agrioensis Olcostephanus (Jeannoticeras) jeannoti

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Type: Ammonites jeannoti

Ecology: fast-moving nektonic carnivore

Distribution:

• Cretaceous of Argentina (4 collections), France (19), Georgia (1), Hungary (1), Italy (1), Mexico (4), Spain (1), Tunisia (2)

Total: 33 collections each including a single occurrence

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