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Spiroceras
Taxonomy
Spiroceras is a genus. It is not extant. It is the type genus of Spiroceratidae, Spirocerataceae.
It was assigned to Ammonoidea by Sepkoski (2002); and to Spiroceratidae by Besnosov and Mitta (1993) and Majidifard (2015).
It was assigned to Ammonoidea by Sepkoski (2002); and to Spiroceratidae by Besnosov and Mitta (1993) and Majidifard (2015).
Species
Helicoceras teilleuxi, S. althoffi, S. annulatum (syn. Toxoceras obliquus), S. bifurcatum, S. bispinatum, S. cylindricum, S. fourneti, S. garani, S. levigatum, S. obliquecostatum, S. orbignyi (syn. Toxoceras baugieri, Ancyloceras obliquus, Toxoceras aequalicostatus), S. rarispina, S. sauzeanum (syn. Ancyloceras nodosus)
Synonyms
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Synonymy list
Year | Name and author |
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1843 | Helicoceras teilleuxi Baugier and Sauze p. 139 figs. Pl. 3, Figs 11-16 |
1876 | Patoceras Meek |
1923 | Rhabdodites Buckman |
1925 | Plagiamites Buckman |
1993 | Spiroceras Besnosov and Mitta p. 222 |
2002 | Spiroceras Sepkoski |
2015 | Spiroceras Majidifard p. 27 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Spiroceras
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†Spiroceras althoffi Potonie 1929
†Spiroceras annulatum d'Orbigny 1850
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Invalid names: Toxoceras obliquus Baugier and Sauze 1843 [synonym]
†Spiroceras bifurcatum Quenstedt 1856
†Spiroceras bispinatum Baugier and Sauze 1843
†Spiroceras cylindricum Baugier and Sauze 1843
†Spiroceras fourneti Romand and Petouraud 1927
†Spiroceras garani Baugier and Sauze 1843
†Spiroceras levigatum d'Orbigny 1850
†Spiroceras obliquecostatum Quenstedt 1887
†Spiroceras orbignyi Baugier and Sauze 1843
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Invalid names: Ancyloceras obliquus d'Orbigny 1850 [synonym], Toxoceras aequalicostatus Baugier and Sauze 1843 [synonym], Toxoceras baugieri d'Orbigny 1850 [synonym]
†Spiroceras rarispina Baugier and Sauze 1843
†Spiroceras sauzeanum d'Orbigny 1850
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Invalid names: Ancyloceras nodosus d'Orbigny 1850 [synonym]
Invalid names: Helicoceras teilleuxi Baugier and Sauze 1843 [nomen dubium], Patoceras Meek 1876 [synonym], Plagiamites Buckman 1925 [synonym], Rhabdodites Buckman 1923 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: o = order, c = class | |||||
References: Kiessling 2004, Kiessling 2003 |
Age range: base of the Bajocian to the top of the Subfurcatum or 170.30000 to 167.70000 Ma
Collections (17 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Garantiana | Iran | S. orbignyi, S. annulatum (175752) | |
Late/Upper Bajocian | Germany | S. annulatum (62203) | |
Late/Upper Bajocian | Spain | S. sp., S. annulatum (71712) | |
Late/Upper Bajocian | Ukraine (Transcarpathian) | S. sp. (197187) | |
Late/Upper Bajocian | Russian Federation | S. annulatum, S. bispinatum, S. fourneti (185036) S. obliquecostatum (185035) | |
Late/Upper Bajocian | Kenya | S. annulatum (191124) | |
Parkinsoni | Germany | S. annulatum (178232) | |
Subfurcatum | Russian Federation | S. althoffi (187900) S. annulatum (187899) | |
Bajocian | Chile (Región de Tarapacá) | S. sp. (229003 229004) | |
Bajocian | USA (Wyoming ) | S. orbignyi (167080) | |
Bajocian | USA (Wyoming) | S. orbignyi (167090) | |
Bajocian | Saudi Arabia | S. annulatum (45301) | |
Bathonian | Saudi Arabia | S. annulatum (48137) | |
Bathonian | France | S. bispinatum (38738) |