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Trachystenoceras

Cephalopoda - Ceratitida - Trachyceratidae

Taxonomy
Trachystenoceras was named by Johnston (1941) [Sepkoski's age data: Tr Carn-u Sepkoski's reference number: 302]. It is not extant.

It was assigned to Arpaditidae by Spath (1951); to Arpaditinae by Tozer (1981) and Tozer (1994); and to Ceratitida by Sepkoski (2002).

Synonymy list
YearName and author
1941Trachystenoceras Johnston
1951Trachystenoceras Spath p. 59
1981Trachystenoceras Tozer p. 96
1994Trachystenoceras Tozer p. 153
2002Trachystenoceras Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
RankNameAuthor
classCephalopodaCuvier 1797
subclassAmmonoidea(Zittel 1884)
orderCeratitidaHyatt 1884
superfamilyTrachyceratoidea(Haug 1894)
familyTrachyceratidaeHaug 1894
subfamilyArpaditinaeHyatt 1900
genusTrachystenocerasJohnston 1941

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.

Diagnosis
No diagnoses are available