PBDB Taxon

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Dissidocerida

Cephalopoda - Dissidocerida

Taxonomy

Dissidocerida was named by Zhuravleva (1964). It was considered paraphyletic by Pohle et al. (2022).

It was assigned to Orthoceratoidea by Zhuravleva (1994) and Kröger and Lefebvre (2012); and to Orthoceratoidea by Evans (2011), Kröger and Evans (2011) and Pohle et al. (2022).

Subtaxa

Bajkaloceratidae, Dissidocerataceae, Geisonoceratidae, Intejoceratidae, Polymeridae, Rangeroceratidae, Troedssonellaceae, Troedssonellidae

Synonymy list

Year	Name and author
1964	Dissidocerida Zhuravleva
1994	Dissidocerida Zhuravleva p. 126
2011	Dissidocerida Evans
2011	Dissidocerida Kröger and Evans
2012	Dissidocerida Kröger and Lefebvre
2022	Dissidocerida Pohle et al. p. 21

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa

Rank	Name	Author
phylum	Mollusca
class	Cephalopoda	Cuvier 1797
subclass	Orthoceratoidea	(M'Coy 1844)
order	Dissidocerida	Zhuravleva 1964
order	Dissidocerida	Zhuravleva 1964

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.

Or. †Dissidocerida Zhuravleva 1964

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Fm. †Bajkaloceratidae Balashov 1960

G. †Bajkaloceras Balashov 1960

Superfm. †Dissidocerataceae Zhuravleva 1964

Fm. †Cyptendoceratidae Zhuravleva 1994

G. †Amsleroceras Hook and Flower 1977

†Amsleroceras gracile Hook and Flower 1977

G. †Veneficoceras Hook and Flower 1977

†Veneficoceras susanae Hook and Flower 1977

Fm. †Dissidoceratidae Zhuravleva 1964

G. †Balashovoceras Kiselev 1990

G. †Dissidoceras Zhuravleva 1964

Fm. †Orthodochmioceratidae Chen et al. 1981

G. †Actinodochmioceras Chen 1981

G. †Orthodochmioceras Chen et al. 1981

Fm. †Geisonoceratidae Zhuravleva 1959

G. †Angeisonoceras Kröger 2008

†Angeisonoceras consocium Barrande 1870

†Angeisonoceras davidsoni Barrande 1870

†Angeisonoceras festians Barrande 1870

†Angeisonoceras imminutum Barrande 1870

†Angeisonoceras inchoatum Barrande 1868

†Angeisonoceras libens Barrande 1870

†Angeisonoceras limatum Barrande 1870

†Angeisonoceras reteornatum Kröger 2008

†Angeisonoceras squamatulum Barrande 1868

G. †Columenoceras Barskov 1960

G. †Geisonoceras Hyatt 1884

†Geisonoceras heintzi Strand 1934

†Geisonoceras kureikense Zhuraleva 1964

†Geisonoceras maclareni Murchison 1859

†Geisonoceras shumardi Billings 1859

†Geisonoceras wegelini Teichert 1930

G. †Geisonocerina

G. †Harrisoceras Flower 1939

G. †Joachimoceras Barskov 1960

G. †Jonesoceras Barskov 1960

G. †Nilssonoceras Kröger 2004

†Nilssonoceras nilssoni Kröger 2004

G. †Ordogeisonoceras Frey 1995

†Ordogeisonoceras amplicameratum Hall 1847

Invalid names: Michelinoceras ludlowense Miller and Faber 1894 [synonym]

†Ordogeisonoceras foerstei Strand 1934

†Ordogeisonoceras tartuensis Kröger and Aubrechtova 2017

†Ordogeisonoceras uppsalaensis Kröger and Aubrechtová 2019

G. †Protokionoceras Grabau and Shimer 1910

†Protokionoceras fessicancellatum Kobayashi et al. 1984

†Protokionoceras strandi Troedsson 1932

G. †Striacoceras Flower 1936

G. †Temperoceras Barskov 1960

†Temperoceras aequinudum Kröger 2008

†Temperoceras ludense Sowerby 1839

Invalid names: Orthoceras dahlii Barrande 1870 [synonym], Orthoceras omnium Barrande 1868 [synonym], Orthoceras temperans Barrande 1867 [synonym]

†Temperoceras migrans Barrande 1868

†Temperoceras nudum Barrande 1870

G. †Ugooloceras Evans 1996

†Ugooloceras oblatum Evans 1996

G. †Virgoceras Flower 1939

†Virgoceras politum M'Coy 1851

Fm. †Intejoceratidae Balashov 1960

G. †Evencoceras Balashov 1960

G. †Intejoceras Balashov 1960

Fm. †Polymeridae Evans 2005

G. †Polymeres Murchison 1839

†Polymeres demetarum Murchison 1839