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Orthocerida

Cephalopoda - Orthocerida

Taxonomy
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

Synonyms
  • 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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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
RankNameAuthor
phylumMollusca
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.

Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragoniteo
Environment: marineo
Locomotion: actively mobileo
Life habit: nektonico
Diet: carnivoreo
Vision: well-developedc
Comments: Nektonic, swimming, carnivore (McKerrow, 1979).o
Created: 2005-10-06 14:35:22
Modified: 2009-04-13 11:56:59
Source: o = order, c = class
References: Kiessling 2004, Aberhan et al. 2004

Age range: base of the Demingian to the top of the Late/Upper Aptian or 485.40000 to 112.03000 Ma

Collections (1519 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Demingian485.4 - 478.6USA (New Mexico) Endorioceras rarum (88827) Metabaltoceras minutum (88945)
Gasconadian485.4 - 477.7USA (Texas) Baltoceratidae indet. (282) Microbaltoceras sp., Microbaltoceras minore (88939)
Tremadoc485.4 - 477.7China (ShanXi) Stereoplasmoceras sp. (8003)
Tremadoc485.4 - 477.7China (Hunan) Bactroceras sp. (7703)
Tremadocian485.4 - 477.7Canada (Nunavut) Gorbyoceras geronticum (88918)
Tremadocian485.4 - 477.7Iran Michelinoceras sp. (66865)
Tremadocian485.4 - 477.7France (Languedoc-Roussillon) Annbactroceras martyi (101705) Annbactroceras martyi, Annbactroceras felinense, Bactroceras mourguesi (101704) Cochlioceras roemeri (101706)
Tulean - Blackhillsian485.4 - 471.8United Kingdom (Scotland) Rhabdiferoceras pertinens (188702 188704 188714 188719 188725 188727 188741)
Early/Lower Ordovician485.4 - 470.0USA (New York) Orthoceras sayi, Orthoceras aristides (42799)
Tremadocian - Floian485.4 - 470.0France (Languedoc-Roussillon) Bactroceras mourguesi (101709 101710 101713) Cochlioceras roemeri (101707) Cochlioceras roemeri, Bactroceras mourguesi (101708)

Youngest occurrences

Time interval Ma Country or state PBDB collection number
Tuvalian232.0 - 221.5USA (Nevada) Michelinoceras sp. (32731)
Tuvalian232.0 - 221.5Austria Orthoceras sandlingense (159542)
Norian228.0 - 208.5USA (nevada) Michelinoceras sp. (32822)
Norian228.0 - 208.5Hungary Orthoceras nodosum, Orthoceras sp. (73270)
Norian228.0 - 208.5USA (Nevada) Michelinoceras sp. (32549 32551)
Lacian221.5 - 215.56Austria Orthoceras dubium, Orthoceras lateseptatum (159516 159899) Orthoceras lateseptatum (159541)
Alaunian215.56 - 212.0Austria Orthoceras dubium, Orthoceras lateseptatum, Orthoceras austriacum (159515)
Sevatian212.0 - 205.6Austria Orthoceras salinarium (159543 159544 159545)
Berriasian145.0 - 139.8USSR (Russian Plain) Bogoslovskya pseudostenomphala (2517 2518 2519 2524)
Late/Upper Aptian122.46 - 112.03Russian Federation Zhuravlevia insperata (65755)