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Circothecida

Orthothecimorpha - Circothecida

Taxonomy
Circothecida was named by Sysoev (1968). It is not extant.

It was assigned to Orthothecimorpha by Sepkoski (2002).

Synonymy list
YearName and author
1968Circothecida Sysoev
2002Circothecida Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
RankNameAuthor
—Lophophorata
phylumHyolitha
classOrthothecimorpha
orderCircothecidaSysoev 1968
orderCircothecidaSysoev 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.

Or. †Circothecida Sysoev 1968
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G. †Arathecus
G. †Asijatheca Missarzhevsky and Mambetov 1981
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†Asijatheca probata Missarzhevsky and Mambetov 1981
G. †Costatheca Rozanov et al. 1969
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†Costatheca clinisepta Syssoiev 1960
G. †Kunyangotheca Qian 1978
G. †Ladatheca
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†Ladatheca cylindrica Grabau 1900
G. †Leibotheca Qian 1978
G. †Spinulitheca Sysoyev 1968
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†Spinulitheca billingsi Syssoiev 1962
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Invalid names: Hyolithellus acquintervallum Syssoiev 1962 [synonym]
Fm. †Turcuthecidae Missarzhevskiy 1989
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G. †Loculitheca Sysoyev 1968
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†Loculitheca zhijinensis Qian and Yin 1984
G. †Xystritheca Qian et al. 2000
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†Xystritheca crenulata Qian et al. 2000
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†Uniformitheca aladzharica Missarzhevsky and Mambetov 1981
†Uniformitheca ovaliformis Missarzhevsky and Mambetov 1981
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragonitep
Environment: marinep
Locomotion: stationaryc
Life habit: epifaunalc
Diet: suspension feederc
Vision: blindc
Created: 2010-02-12 00:20:02
Modified: 2010-02-12 02:20:02
Source: c = class, p = phylum
References: Hendy et al. 2009, Aberhan et al. 2004

Age range: base of the Ediacaran to the top of the Caradoc or 635.00000 to 449.50000 Ma

Collections (149 total)


Time interval Ma Country or state Original ID and collection number
Ediacaran635.0 - 538.8USA (Nevada) Ladatheca sp. (7180)
Jinnigian538.8 - 530.7China (Yunnan) Spinulitheca billingsi (106506)
Manykaian538.8 - 529.0Norway Ladatheca cylindrica (51873)
Nemakit-Daldynian538.8 - 525.5Russian Federation (Khabarovsk Krai) Ladatheca blanda (50367)
Nemakit-Daldynian538.8 - 525.5Canada (Newfoundland and Labrador) Ladatheca cylindrica (87345 87347 87348 87349 87351 87366)
Nemakit-Daldynian538.8 - 525.5Russian Federation (Sakha) Ladatheca annae, Loculitheca anutata (50313) Ladatheca dorsocava (99461)
Nemakit-Daldynian538.8 - 525.5Russian Federation (Siberia) Ladatheca dorsocava, Ladatheca annae, Loculitheca sp., Spinulitheca sp. (50427) Ladatheca sp. (50419) Loculitheca beata (50366)
Nemakit-Daldynian538.8 - 525.5China (Shaanxi) Spinulitheca billingsi (86619)
Nemakit-Daldynian538.8 - 525.5Iran Ladatheca sp. (10527 10528 10529)
Nemakit-Daldynian538.8 - 525.5Russian Federation (Khabarovsk) Ladatheca annae, Ladatheca dorsocava, Spinulitheca rotunda (99465)
Nemakit-Daldynian538.8 - 525.5Russian Federation (Krasnoyarsk) Ladatheca dorsocava (99473)
Nemakit-Daldynian - Tommotian538.8 - 521.0China (Hubei) Spinulitheca billingsi (155462)
Nemakit-Daldynian - Tommotian538.8 - 521.0Russian Federation (Sakha) Ladatheca blanda, Ladatheca dorsocava, Spinulitheca rotunda, Spinulitheca billingsi (99229)
Placentian538.8 - 516.2Canada (Nova Scotia) Ladatheca cylindrica (86748)
Placentian538.8 - 516.2Canada (Newfoundland and Labrador) Ladatheca cylindrica (80844)
Placentian538.8 - 516.2USA (Massachusetts) Ladatheca cylindrica (56832 56833 56834 56836)
Meishucunian530.7 - 521.0China (Anhui) Spinulitheca sp. (107772)
Meishucunian530.7 - 521.0China (Hubei) Spinulitheca billingsi (106524)
Meishucunian530.7 - 521.0China (Yunnan) Hyolithellus billingsi (201567)
Meishucunian530.7 - 521.0China (Guizhou) Loculitheca zhijinensis (106514)
Tommotian525.5 - 521.0Saint Pierre and Miquelon Ladatheca cylindrica (209143)
Tommotian525.5 - 521.0Russian Federation (Khabarovsk Krai) Coleolella billingsi, Spinulitheca billingsi (50314)
Tommotian525.5 - 521.0China (Yunnan) Spinulitheca sp. (94556)
Tommotian525.5 - 521.0Russian Federation (Yakutia) Coleolella billingsi (45847 45849 45850 45851 45856 96245)
Tommotian525.5 - 521.0Russian Federation Loculitheca rugata (90090) Loculitheca rugata, Spinulitheca billingsi (90089)
Tommotian525.5 - 521.0Russian Federation (Krasnoyarskiy Kray) Ladatheca annae, Loculitheca rugata, Spinulitheca billingsi (80840)
Tommotian525.5 - 521.0Russian Federation (Siberia) Coleolella billingsi, Spinulitheca billingsi (50319) Ladatheca dorsocava, Ladatheca annae (50428)
Tommotian525.5 - 521.0Norway Ladatheca cylindrica (51874)
Tommotian525.5 - 521.0Russian Federation (Sakha) Extentitheca savitskii, Ladatheca annae (10046)
Tommotian525.5 - 521.0USA (Massachusetts) Ladatheca cylindrica (56830 56831)
Tommotian525.5 - 521.0Canada (Nova Scotia) Ladatheca cylindrica (6895)
Tommotian525.5 - 521.0Russian Federation (Yakutiya) Coleolella billingsi (80804 80812 96226 96251 96394) Ladatheca annae, Loculitheca rugata, Coleolella billingsi (80796) Ladatheca annae, Spinulitheca billingsi (90088) Ladatheca annae, Uniformitheca rhombiformis, Coleolella billingsi (80809)
Tommotian525.5 - 521.0Canada (Newfoundland and Labrador) Ladatheca cylindrica (56958 56959 56960 87108 87109 87111 87112 87322 87323 87324 87325 87326 87327 87328 87329 87331 87332 87334 87353 87354 87355 87356 87358 87359 87360 87361 87362 87363 87364 87365)
Tommotian525.5 - 521.0Russian Federation (Krasnoyarsk Krai) Ladatheca anna, Loculitheca rugata, Spinulitheca kuteinikovi (232906) Ladatheca annae, Spinulitheca sp., Spinulitheca rotunda (50429)
Tommotian525.5 - 521.0Kazakhstan Uniformitheca aladzharica, Uniformitheca ovaliformis (99298 99315 99322 99331 99355 99356 99360 99361)
Tommotian525.5 - 521.0Russian Federation (Krasnoyarsk) Ladatheca dorsocava (99484)
Tommotian - Atdabanian525.5 - 516.0Canada (Nova Scotia) Ladatheca cylindrica (6897)
Atdabanian521.0 - 516.0Kazakhstan Asijatheca probata (99303 99316 99317 99332 99333) Asijatheca sp. 1, Asijatheca probata (99301 99302) Asijatheca sp. 1, Uniformitheca sp. 1, Uniformitheca aladzharica, Asijatheca probata (99300) Uniformitheca aladzharica, Asijatheca probata (99299)
Atdabanian521.0 - 516.0Russian Federation (Siberia) Costatheca clinisepta (56855) Loculitheca sp. (174257)
Atdabanian521.0 - 516.0USA (Massachusetts) Ladatheca cylindrica (56835)
Atdabanian521.0 - 516.0Canada (Nova Scotia) Ladatheca cylindrica (9351 9386 9389 9390 232701)
Atdabanian521.0 - 516.0China (Xinjiang) Xystritheca crenulata (7826)
Atdabanian521.0 - 516.0Kyrgyzstan Asijatheca sp. 2, Uniformitheca sp. 2 (99327) Uniformitheca sp. 2 (99326)
Atdabanian521.0 - 516.0Russian Federation (Yakutia) Costatheca clinisepta (10115)
Atdabanian521.0 - 516.0Australia (South Australia) Spinulitheca sp. (97747)
Atdabanian - Botomian521.0 - 512.1Canada (Nova Scotia) Ladatheca cylindrica (9391)
Montezuman - Atdabanian520.0 - 516.0USA (Nevada) Ladatheca cylindrica (10574)
Branchian516.2 - 506.5United Kingdom (England) Coleolella billingsi (79931 79939)
Botomian516.0 - 512.1Australia (South Australia) Spinulitheca sp. (97773 97774 97775)
Templetonian508.0 - 504.5Australia (Queensland) Loculitheca kunka (70037)
Templetonian - Floran508.0 - 503.0Australia (Queensland) Loculitheca kunka (69978 69983 69990 69991 69993 69994 69997 69998 69999 70011 70017 70018 70020 70021 70022)
Floran504.5 - 503.0Australia (Queensland) Loculitheca kunka (69974)
Caradoc458.2 - 449.5Poland Mojczatheca triangularis (233108)