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Orthoceras annulata

Cephalopoda - Orthocerida - Orthoceratidae

Taxonomy
Orthoceras annulata was named by Sowerby (1818). It is not extant.

It was recombined as Dawsonoceras annulatum by Hyatt (1884), Kröger and Isakar (2006), Kröger and Isakar (2006) and Kröger (2013).

Synonymy list
YearName and author
1818Orthoceras annulata Sowerby
1884Dawsonoceras annulatum Hyatt p. 277
2006Dawsonoceras annulatum Kröger and Isakar
2013Dawsonoceras annulatum Kröger

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classCephalopodaCuvier 1797
subclassOrthoceratoidea(M'Coy 1844)
orderOrthoceridaKuhn 1940
familyOrthoceratidaeM'Coy 1844
genusOrthocerasBreynius 1832
speciesannulata

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.

Orthoceras annulata Sowerby 1818
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Diagnosis
No diagnoses are available