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Morphology Ecology and taphonomy   Age range and collections

Circotheca

Orthothecida - Circothecidae

Taxonomy
Circotheca was named by Syssoiev (1958) [Sepkoski's age data: V N-Da-l S Ludl Sepkoski's reference number: 288,885,1030]. Its type is Hyolithes stylus.

It was assigned to Orthothecidae by Fisher (1962); to Circothecidae by Rozanov et al. (1969) and Azmi and Pancholi (1983); to Hyolitha by Malinky (1990); and to Circothecida by Sepkoski (2002).

Synonymy list
YearName and author
1958Circotheca Syssoiev
1962Circotheca Fisher p. 125
1969Circotheca Rozanov et al. p. 131
1983Circotheca Azmi and Pancholi p. 367
1990Circotheca Malinky p. 228
2002Circotheca Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Eutriploblastica
Neotriploblastica
Eucoelomata
superphylumLophotrochozoa
RankNameAuthor
Lophophorata
phylumHyolitha
orderOrthothecida
familyCircothecidae
genusCircothecaSyssoiev 1958

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