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Sphaerorthoceratidae

Cephalopoda - Orthocerida - Orthoceratoidea

Taxonomy
Sphaerorthoceratidae was named by Ristedt (1968). It is not extant. Its type is Sphaerorthoceras.

It was assigned to Orthocerida by Kröger (2008).

Entered
by B. Kröger on 2009-09-22; modified by B. Kröger on 2013-04-30

Synonymy list
YearName and author
1968Sphaerorthoceratidae Ristedt
2008Sphaerorthoceratidae Kröger

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
RankNameAuthor
phylumMollusca
classCephalopodaCuvier 1797
familyOrthoceratoidea()
orderOrthoceridaKuhn 1940
familySphaerorthoceratidaeRistedt 1968
familySphaerorthoceratidaeRistedt 1968

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.

Fm. †Sphaerorthoceratidae Ristedt 1968
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G. †Akrosphaeorthoceras Ristedt 1968
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G. †Akrosphaerorthoceras Ristedt 1968
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G. †Hemicosmorthoceras Ristedt 1968
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Hemicosmorthoceras aichae Kröger 2008
Hemicosmorthoceras dimidiatum Sowerby in Murchinson 1839
G. †Iwakiella Hatai et al. 1972
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Iwakiella ichiroi Hatai et al. 1972
G. †Parasphaerorthoceras Ristedt 1968
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G. †Plagiostomoceras Teichert and Glenister 1952
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Plagiostomoceras angustum Holzapfel 1885
Plagiostomoceras bifrons Barrande 1866
Plagiostomoceras culter Barrande 1866
Plagiostomoceras placidum Barrande 1868
Plagiostomoceras thomasi Teichert and Glenister 1952
G. †Sphaerorthoceras Ristedt 1968
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Sphaerorthoceras beatum Ristedt 1968
Diagnosis
No diagnoses are available