Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy External Literature Search Age range and collections

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

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
RankNameAuthor
classCephalopodaCuvier 1797
subclassOrthoceratoideaZhuravleva 1994
orderOrthoceridaKuhn 1940
familyOrthoceratidaeMcCoy 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.

Diagnosis
No diagnoses are available