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Circothecida
Taxonomy
Circothecida was named by Sysoev (1968). It is not extant.
It was assigned to Orthothecimorpha by Sepkoski (2002).
It was assigned to Orthothecimorpha by Sepkoski (2002).
Synonymy list
Year | Name and author |
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1968 | Circothecida Sysoev |
2002 | Circothecida Sepkoski |
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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. †Extentitheca
G. †Kunyangotheca Qian 1978
G. †Leibotheca Qian 1978
G. †Mojczatheca
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. †Uniformitheca
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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
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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 Early/Lower Maastrichtian or 635.00000 to 66.00000 Ma
Collections (151 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Ediacaran | USA (Nevada) | Ladatheca sp. (7180) | |
Manykaian | Norway | Ladatheca cylindrica (51873) | |
Nemakit-Daldynian | Russian Federation (Sakha) | Ladatheca annae, Loculitheca anutata (50313) Ladatheca dorsocava (99461) | |
Nemakit-Daldynian | Russian Federation (Khabarovsk Krai) | Ladatheca blanda (50367) | |
Nemakit-Daldynian | Russian Federation (Siberia) | Ladatheca dorsocava, Ladatheca annae, Loculitheca sp., Spinulitheca sp. (50427) Ladatheca sp. (50419) Loculitheca beata (50366) | |
Nemakit-Daldynian | Russian Federation (Khabarovsk) | Ladatheca annae, Ladatheca dorsocava, Spinulitheca rotunda (99465) | |
Nemakit-Daldynian | Iran | Ladatheca sp. (10527 10528 10529) | |
Nemakit-Daldynian | China (Shaanxi) | Spinulitheca billingsi (86619) | |
Nemakit-Daldynian | Russian Federation (Krasnoyarsk) | Ladatheca dorsocava (99473) | |
Nemakit-Daldynian | Canada (Newfoundland and Labrador) | Ladatheca cylindrica (87345 87347 87348 87349 87351 87366) | |
Nemakit-Daldynian | China (Yunnan) | Spinulitheca billingsi (106506) | |
Nemakit-Daldynian - Tommotian | Russian Federation (Sakha) | Ladatheca blanda, Ladatheca dorsocava, Spinulitheca rotunda, Spinulitheca billingsi (99229) | |
Nemakit-Daldynian - Tommotian | China (Hubei) | Spinulitheca billingsi (155462) | |
Placentian | USA (Massachusetts) | Ladatheca cylindrica (56832 56833 56834 56836) | |
Placentian | Canada (Newfoundland and Labrador) | Ladatheca cylindrica (80844) | |
Placentian | Canada (Nova Scotia) | Ladatheca cylindrica (86748) | |
Cambrian | China (Yunnan) | Hyolithellus billingsi (201567) | |
Meishucunian | China (Anhui) | Spinulitheca sp. (107772) | |
Meishucunian | China (Hubei) | Spinulitheca billingsi (106524) | |
Meishucunian | China (Guizhou) | Loculitheca zhijinensis (106514) | |
Tommotian | Russian Federation (Siberia) | Coleolella billingsi, Spinulitheca billingsi (50319) Ladatheca dorsocava, Ladatheca annae (50428) | |
Tommotian | Norway | Ladatheca cylindrica (51874) | |
Tommotian | Russian Federation | Loculitheca rugata (90090) Loculitheca rugata, Spinulitheca billingsi (90089) | |
Tommotian | China (Yunnan) | Spinulitheca sp. (94556) | |
Tommotian | Russian Federation (Khabarovsk Krai) | Coleolella billingsi, Spinulitheca billingsi (50314) | |
Tommotian | Russian Federation (Yakutia) | Coleolella billingsi (45847 45849 45850 45851 45856 96245) | |
Tommotian | USA (Massachusetts) | Ladatheca cylindrica (56830 56831) | |
Tommotian | Saint Pierre and Miquelon | Ladatheca cylindrica (209143) | |
Tommotian | Kazakhstan | Uniformitheca aladzharica, Uniformitheca ovaliformis (99298 99315 99322 99331 99355 99356 99360 99361) | |
Tommotian | Russian Federation (Krasnoyarskiy Kray) | Ladatheca annae, Loculitheca rugata, Spinulitheca billingsi (80840) | |
Tommotian | Canada (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) | |
Tommotian | Russian Federation (Krasnoyarsk) | Ladatheca dorsocava (99484) | |
Tommotian | Russian 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) | |
Tommotian | Russian Federation (Sakha) | Extentitheca savitskii, Ladatheca annae (10046) | |
Tommotian | Canada (Nova Scotia) | Ladatheca cylindrica (6895) | |
Tommotian | Russian Federation (Krasnoyarsk Krai) | Ladatheca anna, Loculitheca rugata, Spinulitheca kuteinikovi (232906) Ladatheca annae, Spinulitheca sp., Spinulitheca rotunda (50429) | |
Tommotian - Atdabanian | Canada (Nova Scotia) | Ladatheca cylindrica (6897) | |
Atdabanian | Russian Federation (Yakutia) | Costatheca clinisepta (10115) | |
Atdabanian | Russian Federation (Siberia) | Costatheca clinisepta (56855) Loculitheca sp. (174257) | |
Atdabanian | USA (Massachusetts) | Ladatheca cylindrica (56835) | |
Atdabanian | Australia (South Australia) | Spinulitheca sp. (97747) | |
Atdabanian | Kazakhstan | 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) | |
Atdabanian | Kyrgyzstan | Asijatheca sp. 2, Uniformitheca sp. 2 (99327) Uniformitheca sp. 2 (99326) | |
Atdabanian | China (Xinjiang) | Xystritheca crenulata (7826) | |
Atdabanian | Canada (Nova Scotia) | Ladatheca cylindrica (9351 9386 9389 9390 232701) | |
Atdabanian - Botomian | Canada (Nova Scotia) | Ladatheca cylindrica (9391) | |
Montezuman - Atdabanian | USA (Nevada) | Ladatheca cylindrica (10574) | |
Branchian | United Kingdom (England) | Coleolella billingsi (79931 79939) | |
Botomian | Australia (South Australia) | Spinulitheca sp. (97773 97774 97775) | |
Templetonian | Australia (Queensland) | Loculitheca kunka (70037) | |
Templetonian - Floran | Australia (Queensland) | Loculitheca kunka (69978 69983 69990 69991 69993 69994 69997 69998 69999 70011 70017 70018 70020 70021 70022) | |
Floran | Australia (Queensland) | Loculitheca kunka (69974) | |
Caradoc | Poland | Mojczatheca triangularis (233108) | |
Late/Upper Barremian - Early/Lower Aptian | Germany (Sauerland) | Costatheca lata (22727) | |
Early/Lower Maastrichtian | Argentina (Santa Cruz) | Costatheca striata (231725) |