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Derolytoceras tortum

Cephalopoda - Ammonitida - Lytoceratidae

Taxonomy
Ammonites tortus was named by Quenstedt (1885). It is the type species of Derolytoceras.

It was recombined as Derolytoceras tortum by Wiedmann (1970), Meister (1986), Meister (1989), Blau and Meister (1991), Géczy and Meister (1998) and Meister and Friebe (2003).

Synonymy list
YearName and author
1885Ammonites tortus Quenstedt p. 39 fig. 12,13
1970Derolytoceras tortum Wiedmann p. 995 figs. Pl 6, figs 3,4; pl 9, fig 4; text-fig 8e
1986Derolytoceras tortum Meister p. 28 figs. Pl 1, fig 3
1989Derolytoceras tortum Meister p. 33 figs. Pl 1, figs 4,5
1991Derolytoceras tortum Blau and Meister p. 178
1998Derolytoceras tortum Géczy and Meister p. 100
2003Derolytoceras tortum Meister and Friebe

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea()
orderAmmonitida
suborderAmmonitinaHyatt 1889
superfamilyLytoceratoidea(Neumayr 1875)
familyLytoceratidaeNeumayr 1875
subfamilyLytoceratinaeNeumayr 1875
genusDerolytocerasSuess 1865
speciestortum(Quenstedt 1885)

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.

†Derolytoceras tortum Quenstedt 1885
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Diagnosis
No diagnoses are available
Measurements
partNmean
shell height16.50
shell diameter119.9
shell inflation17.40

Composition: aragoniteo
Environment: marinec
Locomotion: fast-movingo
Life habit: nektonico
Diet: carnivoreo
Vision: well-developedc
Created: 2005-01-28 02:27:03
Modified: 2009-10-08 14:14:55
Source: o = order, c = class
References: Kiessling 2004, Kiessling 2003

Age range: Ibex or 189.60000 to 183.00000 Ma

Collections (24 total)


Time interval Ma Country or state Original ID and collection number
Sinemurian - Pliensbachian199.3 - 182.7Austria Derolytoceras tortum (218903)
Late/Upper Sinemurian - Late/Upper Pliensbachian196.5 - 183.0Austria Derolytoceras tortum (218932)
Davoei189.6 - 183.0France Derolytoceras tortum (148138 148142 148198)
Davoei - Margaritatus189.6 - 183.0France Derolytoceras tortum (148078 148091)
Ibex189.6 - 183.0France Derolytoceras tortum (146468 148069 148072 148100 148103 148104 148130)
Ibex - Margaritatus189.6 - 183.0France Derolytoceras tortum (147794)
Margaritatus189.6 - 183.0Hungary Derolytoceras tortum (109138 109497 109506 109532)
Margaritatus189.6 - 183.0France Derolytoceras tortum (146605 148048 148136)
Margaritatus189.6 - 183.0Italy Derolytoceras tortum (196617)
Margaritatus189.6 - 183.0Austria Derolytoceras tortum (145292)