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Cephalopoda - Orthocerida

Orthocerida was named by Kuhn (1940) [nom. transl. et correct. Teichert, 1964 ex subordo Orthoceracea Kuhn, 1940].

It was assigned to Nautiloidea by Teichert et al. (1964), Frey (1981), Evans (1994), Evans (1994), Dzik and Kiselev (1995) and Evans (1996); to Orthoceratoidea by Evans (2005), Evans (2011) and Kröger and Evans (2011); to Orthoceratoidea by Kröger and Lefebvre (2012); and to Cephalopoda by Kröger (2008), Kröger et al. (2011) and Kröger (2013).

View classification of included taxa

  • Michelinoceratida was named by Flower and Kummel (1950). It is not extant.

    It was synonymized subjectively with Orthocerida by Sweet (1964).
  • Sinoceratida was named by Kobayashi (1958). It is not extant.

    It was synonymized subjectively with Orthocerida by Sweet (1964).
Synonymy list
YearName and author
1940Orthocerida Kuhn
1950Michelinoceratida Flower and Kummel
1958Sinoceratida Kobayashi
1964Orthocerida Teichert et al. p. 100
1981Orthocerida Frey p. 1217
1994Orthocerida Evans p. 18
1995Orthoceratida Dzik and Kiselev p. 67
1996Orthocerida Evans p. 71
2005Orthocerida Evans p. 58
2008Orthocerida Kröger
2011Orthocerida Evans
2011Orthocerida Kröger et al.
2011Orthocerida Kröger and Evans
2012Orthocerida Kröger and Lefebvre
2013Orthocerida Kröger

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EubilateriaAx 1987
classCephalopodaCuvier 1797
subclassOrthoceratoideaZhuravleva 1994
orderOrthoceridaKuhn 1940
orderOrthoceridaKuhn 1940

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