†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, Astieria bangei, Astieria raricostata, Holcostephanus (Astieria) josephinus, Astieria zacatecana, Astieria neohispanica, Taraisites bosei, Maderia marcoensis, Maderia coahuilensis, Maderia casitensis, Maderia marcosensis, Subastieria sulcosae, Subastieria balkanica, Subastieria sulcosus, Subastieria inordinata

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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