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Trachyceras aon

Cephalopoda - Ceratitida - Trachyceratidae

Ammonites (Ceratites) aon was named by Munster (1834). It is the type species of Trachyceras.

It was recombined as Ammonites aon by Münster (1841); it was recombined as Trachyceras aon by Spath (1951) and Mietto and Manfrin (2008).

Sister species lacking formal opinion data

View classification of included taxa

Synonymy list
YearName and author
1834Ammonites (Ceratites) aon Munster p. 13 figs. Pl 1, figs 4a-d
1841Ammonites aon Münster p. 136 figs. Pl 15, fig 27
1843Ammonites mirabilis Klipstein p. 108 figs. Pl 5, figs 2a,b
1843Ammonites spinulocostatus Klipstein p. 112 figs. Pl 5, fig 6
1843Ammonites dechenii Klipstein p. 118 figs. Pl 6, figs 6a-c
1843Ammonites credneri Klipstein p. 119 figs. Pl 6, fig 10
1843Ammonites velthemii Klipstein p. 122 figs. Pl 7, figs 3a-c
1843Ammonites larva Klipstein p. 127 figs. Pl 7, figs 9a-c
1843Ammonites armatocingulatus Klipstein p. 128 figs. Pl 7, figs 10a,b
1843Ceratites brevicostatus Klipstein p. 134 figs. Pl 8, fig 6
1843Ceratites meriani Klipstein p. 134 figs. Pl 8, figs 5a-c
1951Trachyceras aon Spath p. 42
2008Trachyceras aon Mietto and Manfrin

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EubilateriaAx 1987
classCephalopodaCuvier 1797
subclassAmmonoidea(Zittel 1884)
orderCeratitidaHyatt 1884
superfamilyTrachyceratoidea(Haug 1894)
familyTrachyceratidaeHaug 1894
subfamilyTrachyceratinaeHaug 1894
genusTrachycerasLaube 1869
speciesaon(Munster 1834)

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.

No diagnoses are available
No measurements are available
Composition: aragoniteo
Locomotion: actively mobileo
Life habit: nektonico
Diet: carnivoreo
Vision: well-developedc
Created: 2005-01-28 02:33:06
Modified: 2005-10-06 16:36:47
Source: o = order, c = class
References: Kiessling 2003, Kiessling 2004

Age range: base of the Julian to the top of the Tuvalian or 235.00000 to 221.50000 Ma

Collections (7 total)

Time interval Ma Country or state Original ID and collection number
Julian235.0 - 232.0Italy Ammonites aon (137429) Ammonites mirabilis, Ammonites spinulocostatus, Ammonites dechenii, Ammonites credneri, Ammonites velthemii, Ammonites larva, Ammonites armatocingulatus, Ceratites meriani, Ceratites brevicostatus (145649) Trachyceras aon (50872 50873 142063 142066)
Tuvalian232.0 - 221.5China (Guizhou) Trachyceras aon (85166)