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Conotheca

Orthothecida - Circothecidae

Synonyms
Synonymy list
YearName and author
1969Conotheca Rozanov et al. pp. 134-135
1969Edgetheca Rozanov et al. p. 142
1983Conotheca Azmi and Pancholi p. 368
1984Conotheca Duan p. 162
1990Conotheca Bengtson et al. p. 213
1996Conotheca Landing and Bartowski p. 756
2002Conotheca Sepkoski, Jr.
2004Conotheca Malinky and Skovsted p. 570
2010Conotheca Parkhaev and Demidenko p. 931

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

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
ReferenceDiagnosis
J. M. Malinky and C.B. Skovsted 2004Shell conical with circular cross−section and
transverse elements of sculpture on the exterior; aperture pla−
nar and operculum with cardinal processes and circular
ridges on interior.
P. Y. Parkhaev and Y. Demidenko 2010"Narrow conical shell with circular cross-section. Initial part of shell slightly swollen. Aperture straight or almost straight. Ornamentation represented by prominent growth lines."