Cephalopoda - Ammonitida - Olcostephanidae
Alternative combinations: Ammonites atherstoni, Astieria atherstoni, Holcostephanus atherstoni, Olcostephanus (Olcostephanus) atherstoni
Synonyms: Ammonites bainii Sharpe 1856, Ammonites schenki Oppel 1863, Astieria actinota Baumberger 1908, Astieria astieriformis Böse 1923, Astieria baini Sharpe 1856, Astieria catulloi Rodighiero 1919, Astieria curacoensis Weaver 1931, Astieria guebhardi Killian 1902, Astieria imbricata Baumberger 1908, Astieria leptoplana Baumberger 1908, Astieria sudandina Windhausen 1931, Astieria symonensis Böse 1923, Holcostephanus (Astieria) guebhardi Killian 1902, Holcostephanus auritus Leanza 1944, Holcostephanus midas Leanza 1944, Holcostephanus modderensis Kitchin 1908, Holcostephanus rogersi Kitchin 1908, Holcostephanus wilmanae Kitchin 1908, Olcostephanus bakeri Imlay 1937, Olcostephanus catulloi Rodighiero 1919, Olcostephanus coahuilensis Imlay 1938, Olcostephanus filifer Imlay 1937, Olcostephanus guebhardi Killian 1902, Olcostephanus prorsiradiatus Imlay 1937, Olcostephanus quadriradiatus Imlay 1938, Rogersites bakeri Imlay 1937, Rogersites curvicostata Besairie 1936, Rogersites douvillei Besairie 1932, Rogersites filifer Imlay 1937, Rogersites otoitoides Spath 1930, Rogersites prorsiradiatus Imlay 1937, Rogersites sphaeroidalis Spath 1930, Rogersites tenuicostatus Imlay 1937, Taraisites neoleonense Cantu-Chapa 1966, Taraisites tenuicostatus Imlay 1937
Belongs to Olcostephanus according to J. R. Ovando-Figueroa et al. 2024
See also Avram and Gradinaru 1993, Böse 1923, Haas 1960, Imlay 1937, Imlay 1960, Imlay and Jones 1970, Klein 2005, Lukeneder 2004, Mourgues et al. 2015 and Ovando-Figueroa et al. 2024
Sister taxa: Olcostephanus (Jeannoticeras), Olcostephanus (Olcostephanus), Olcostephanus (Viluceras), Olcostephanus astierianus, Olcostephanus delicatecostatus, Olcostephanus detonii, Olcostephanus paucicostatus, Olcostephanus pecki, Olcostephanus popenoei, Olcostephanus sanlazarensis, Subastieria sulcosus, Subastieria inordinata, Subastieria sulcosae, Subastieria balkanica, Holcostephanus (Astieria) josephinus, Astieria neohispanica, Astieria zacatecana, Astieria raricostata, Astieria bangei, Taraisites bosei, Maderia casitensis, Maderia marcosensis, Maderia coahuilensis, Maderia marcoensis
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): shell diameter 66.3
Distribution:
• Cretaceous of Argentina (7 collections), Austria (1), Chile (8), Colombia (1), France (1), Hungary (3), Italy (1), Mexico (10), Morocco (20), Romania (1), United States (4: California)
Total: 57 collections including 60 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.