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Acratia
Taxonomy
Acratia was named by Delo (1930) [Sepkoski's age data: D Give-u P Dora Sepkoski's reference number: 648,670]. It is not extant. It is the type genus of Acratiidae.
It was assigned to Podocopida by Sepkoski (2002); to Bairdiidae by Becker and Wang (1992), Forel et al. (2020); and to Acratiidae by Crasquin (2008), Sebe et al. (2013), Zazzali et al. (2015), Chitnarin (2017), Forel (2017), Forel (2017), Tanaka (2018), Chitnarin and Ketwetsuriya (2021), Kolar-Jurkovšek et al. (2024).
It was assigned to Podocopida by Sepkoski (2002); to Bairdiidae by Becker and Wang (1992), Forel et al. (2020); and to Acratiidae by Crasquin (2008), Sebe et al. (2013), Zazzali et al. (2015), Chitnarin (2017), Forel (2017), Forel (2017), Tanaka (2018), Chitnarin and Ketwetsuriya (2021), Kolar-Jurkovšek et al. (2024).
Species
A. caeracella, A. candyae, A. changxingensis, A. chongpani, A. filippovskaensis, A. goemoeryi, A. guangyuanensis, A. hamadai, A. hungarica, A. jeanvannieri, A. kollmanni, A. lucea, A. mongkoli, A. nagyvisnyoensis, A. obesa, A. okumurai, A. olivifera, A. permiana, A. pervagata, A. posteroinclinata, A. posthungarica, A. pulchra, A. qinglongensis, A. recurvata, A. schreteri, A. serbianella, A. simplex, A. siratchoica, A. subfusiformis, A. subgusevae, A. subularis, A. symmetrica, A. triassica, A. typica, A. visnyoensis, A. zhongyingensis
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1930 | Acratia Delo |
| 1992 | Acratia Becker and Wang p. 37 |
| 2002 | Acratia Sepkoski |
| 2008 | Acratia Crasquin p. 250 |
| 2013 | Acratia Sebe et al. p. 517 |
| 2015 | Acratia Zazzali et al. p. 290 |
| 2017 | Acratia Chitnarin p. 675 |
| 2017 | Acratia Forel p. 17 |
| 2018 | Acratia Tanaka p. 22 |
| 2020 | Acratia Forel et al. p. 382 |
| 2021 | Acratia Chitnarin and Ketwetsuriya p. 6 |
| 2024 | Acratia Kolar-Jurkovšek et al. p. 186 |
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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.
G. †Acratia Delo 1930
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†Acratia caeracella Forel 2017
†Acratia candyae Forel 2012
†Acratia changxingensis Shi 1987
†Acratia chongpani Chitnarin 2017
†Acratia filippovskaensis Kotschetkova 1972
†Acratia goemoeryi Kozur 1970
†Acratia guangyuanensis Xie 1989
†Acratia hamadai Tanaka et al. 2013
†Acratia hungarica Kozur 1985
†Acratia jeanvannieri Forel 2013
†Acratia kollmanni Forel 2017
†Acratia lucea Maillet et al. 2013
†Acratia mongkoli Chitnarin 2017
†Acratia nagyvisnyoensis Forel 2013
†Acratia obesa Gusseva 1972
†Acratia okumurai Tanaka 2013
†Acratia olivifera Chen 1958
†Acratia permiana Zalanyi 1974
†Acratia pervagata Forel 2015
†Acratia posteroinclinata Kozur 1985
†Acratia posthungarica Kozur 1985
†Acratia pulchra Posner 1951
†Acratia qinglongensis Wang 1978
†Acratia recurvata Cordell 1952
†Acratia schreteri Kozur 1985
†Acratia serbianella Crasquin 2010
†Acratia simplex Kesling and Chilman 1978
†Acratia siratchoica Egorov 1953
†Acratia subfusiformis Wang 1978
†Acratia subgusevae Wang 2005
†Acratia subularis Gusseva 1972
†Acratia symmetrica Hao 1992
†Acratia triassica Kozur 1970
†Acratia typica Delo 1930
†Acratia visnyoensis Kozur 1985
†Acratia zhongyingensis Wang 1978
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| carapace height | 28 | 0.399 | 0.250 | 0.737 | 0.400 | 0.100 | |
| shell height | 16 | 0.462 | 0.310 | 1.16 | 0.440 | 0.194 | |
| valve height | 24 | 0.203 | 0.003 | 0.570 | 0.284 | 0.115 |
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| Source: o = order, c = class | |||||
| References: Jell and Adrain 2002, Kiessling 2004 | |||||
Age range: base of the Middle Givetian to the top of the Early/Lower Pliensbachian or 385.90000 to 184.20000 Ma
Collections (296 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Givetian | France | A. cf. sp. G2, A. sp. 3, A. sp. G1 (38681) A. sp. G1 (38683) | |
| Givetian | USA (Michigan) | A. simplex (38475) | |
| Middle Givetian | France | A. lucea (158152) | |
| Early/Lower Frasnian | Türkiye | A. sp. (200387) | |
| Frasnian | China (Hunan) | A. sp. (40953 40955) A. sp. A (143421) | |
| Late/Upper Frasnian | Poland | A. feisti (35399) A. pentagona, A. nevadensis, A. feisti (35394) A. sp. nov. B, A. pentagona, A. ljubzovi, A. evlanensis (35400) A. sp. nov. B, A. saggitaeformis, A. ljubzovi, A. evlanensis (35401) A. sp., A. feisti, A. ljubzovi, A. gassanovae (35398) A. sp., A. supinaeformis, A. zadonica, A. sp. nov. B, A. pentagona, A. nevadensis (35386) A. sp., A. zadonica, A. nevadensis, A. saggitaeformis, A. ljubzovi, A. supina (35388) A. supinaeformis, A. zadonica, A. pentagona, A. gassanovae, A. feisti, A. saggitaeformis, A. ljubzovi (35387) A. supinaeformis, A. zadonica, A. pentagona, A. nevadensis, A. saggitaeformis, A. supina, A. evlanensis (35392) A. supinaeformis, A. zadonica, A. sp. nov. B, A. nevadensis, A. gassanovae, A. ljubzovi, A. supina (35390) A. zadonica, A. sp., A. pentagona, A. ljubzovi (35391) A. zadonica, A. sp., A. sp. nov. B, A. nevadensis, A. gassanovae, A. saggitaeformis (35393) A. zadonica, A. sp., A. sp. nov. B, A. pentagona, A. gassanovae, A. ljubzovi, A. supina, A. evlanensis (35397) A. zadonica, A. sp., A. sp. nov. B, A. pentagona, A. nevadensis, A. gassanovae, A. feisti (35389) A. zadonica, A. sp., A. sp. nov. B, A. pentagona, A. nevadensis, A. gassanovae, A. ljubzovi (35396) | |
| Late/Upper Frasnian | Poland (Kostomloty) | A. evlanensis, A. nevadaensis (162213) A. nevadaensis (162214) A. supina, A. supinaeformis, A. evlanensis, A. silincula, A. nevadaensis, A. sp. A, A. sp. (162212) A. supina, A. supinaeformis, A. evlanensis, A. silincula, A. nevadaensis, A. sp. A, A. sp. C (162220) A. supina, A. supinaeformis, A. evlanensis, A. silincula, A. sp. C (162211) | |
| Early/Lower Famennian | Poland | A. evlanensis (35403 35405 35411) A. nevadensis, A. evlanensis (35409) A. pentagona (35402) | |
| Early/Lower Famennian | USA (Nevada) | A. silincula, A. gassanovae, A. sp., A. subelongata (158171) | |
| Early/Lower Famennian | Poland (Kostomloty) | A. badwildungensis (162218) | |
| Famennian | China (Hunan) | A. sp. B (143420) A. sp. C (143419) | |
| Late/Upper Famennian | Belgium (Liege) | A. sp. (75672) | |
| Kinderhookian | USA (Indiana) | A. similaris (6733) | |
| Tournaisian | China (Guizhou) | A. deloi (58462) | |
| Meramecian | Canada (Alberta) | A. deloi (62396) | |
| Meramecian | USA (Kentucky) | A. sp. (2711) | |
| Chesterian | Canada (Alberta) | A. mucronata (62383) | |
| Chesterian - Alportian | USA (Wyoming) | A. disjuncta (5689 5710) | |
| Westphalian | Spain | A. garrisonensis (73298) | |
| Moscovian | Hungary | A. schreteri (146177) | |
| Gzhelian | USA (Kansas) | A. typica (95377 132990 133148) | |
| Asselian | USA (Kansas) | A. typica (110320) | |
| Asselian - Sakmarian | Thailand | A. chongpani (137897 223960) A. chongpani, A. mongkoli (137896) A. mongkoli (137899) | |
| Permian | Italy | A. visnyoensis (106551) | |
| Sakmarian | Japan | A. sp. 1 (197662) | |
| Sakmarian | Thailand | A. chongpani (223959) A. mongkoli (223958) | |
| Sakmarian | China (Zhejiang) | A. subgusevae (120907 120908 120909 120911 120912) | |
| Sakmarian | China (Fujian) | A. zhongyingensis (95696) | |
| Artinskian | Greece | A. schreteri, Bairdia galei (112050) | |
| Kungurian | China (Fujian) | A. siratchoica (95703 95709) A. subfusiformis (95704 95705 95706) | |
| Kungurian | China (Jiangsu) | A. olivifera (142159) A. pulchra (142177 142187) A. siratchoica (142169) A. sp. 1 (142166 142167) A. sp. 2, A. siratchoica (142171) | |
| Kungurian | Thailand | A. mongkoli (137925) | |
| Kungurian | Venezuela (Merida) | A. sp. (41506) | |
| Kungurian | Guatemala | A. magna, A. permiana (155577) A. obesa, A. permiana (155576) A. sp. 1 (155573) A. sp. 1, A. filippovskaensis, A. obesa (155572) | |
| Roadian | Thailand | A. mongkoli (223973) A. sp., A. chongpani (223887) | |
| Roadian | Russian Federation | A. baschkirica, A. ingeniosa (197598) | |
| Wordian | Thailand | A. chongpani (223981) | |
| Wordian | Oman | A. n. sp.2, A. subularis (49910) A. n. sp.3 (49870 49917) A. subularis (49922) | |
| Wordian | Türkiye | A. changxingensis (47801 47905) | |
| Capitanian | Türkiye | A. changxingensis (47914 47924 47925 47927 47929 47949 47958 47968) A. n.sp.1, A. changxingensis (48000) A. sp.1 (48010) | |
| Capitanian | China (Sichuan) | A. sp.1 (189439) A. sp.1, A. sp.2 (189442 189446) | |
| Capitanian | Japan | A. okumurai, A. hamadai (142029) | |
| Capitanian | Thailand | A. sp. (137928) A. sp., A. chongpani, A. mongkoli (137927) | |
| Wuchiapingian | Greece | A. pulchra (112056 112070) A. sp. 1 (112061) A. sp. 2 (112069) | |
| Wuchiapingian | Lithuania | A. sp. (45952 46158 46159 46170 46198 46202 46203 46401 46406 46410 46411 46414 46426 46427 46428 46520) | |
| Wuchiapingian | Iran | A. sp. A (168894) | |
| Wuchiapingian | Hungary | A. hungarica (146174) A. posthungarica, A. posteroinclinata (146175) A. visnyoensis (146182 146201) | |
| Wuchiapingian | China (Sichuan) | A. guangyuanensis (148476) A. nagyvisnyoensis, A. recurvata (189473) A. recurvata (189477 189489) A. sp. (148477 148498) A. sp.3 (189471) A. sp.3, A. sp.4 (189482) A. sp.3, A. sp.4, A. recurvata (189488) A. sp.3, A. sp.4, A. sp.5, A. recurvata (189484) A. sp.4 (189472 189480 189483 189485) A. sp.4, A. nagyvisnyoensis (189476) A. sp.4, A. recurvata (189481 189486 189487) | |
| Wuchiapingian | Russian Federation (Kaliningrad) | A. sp. (46174 46425) | |
| Wuchiapingian | China (Guizhou) | A. subfusiformis (112105) | |
| Changhsingian | Serbia | A. serbianella (112043) A. sp. 1, A. sp. 2 (112049) A. visnyoensis (112042 112044 112045) A. visnyoensis, A. serbianella (112041) | |
| Changhsingian | China (Sichuan) | A. sp. (148481) | |
| Changhsingian | China (Fujian) | Pseudobythocypris changxingensis (121208 121289 121291 121292 121293) | |
| Changhsingian | Iran | A. permiana, A. pervagata, A. qinglongensis (168916) A. pervagata (168910 168923 168930) A. pervagata, A. qinglongensis (168917 168920) A. qinglongensis (125572) A. sp. A (168915) A. sp. A, A. subfusiformis (125571) A. sp. A, A. subfusiformis, A. qinglongensis (168895) A. sp. B (168907) A. sp. C, A. pervagata, A. qinglongensis (168919) A. subfusiformis (125568) A. subfusiformis, A. permiana (168898) A. subfusiformis, A. qinglongensis (168897) | |
| Changhsingian | Italy | A. sp. 1 (84134) A. sp. 2 (84133) A. zhongyingensis (87163 87165 87192) | |
| Changhsingian | China (Guizhou) | A. candyae (132519 132522) A. qinglongensis (112086) A. sp. 1 (132515) A. sp. 1, A. sp. 4, A. subfusiformis (95649) A. sp. 2 (132518) A. sp. 4, A. candyae (132523) A. sp. 4, A. sp. 3, A. sp. 5 (132517) A. subfusiformis (132520) | |
| Changhsingian | Hungary | A. jeanvannieri (140066) A. jeanvannieri, A. nagyvisnyoensis (140064) A. sp. C, A. jeanvannieri (140062) A. sp. C, A. nagyvisnyoensis (140059 140060 140063) A. sp. D, A. sp. A, A. sp. B, A. nagyvisnyoensis (140058) A. sp. E (140065) | |
| Changhsingian | China (Zhejiang) | A. subfusiformis (97887 97895 97898 97902 97912 97915 97916 97922 117575 117580 117597 117615 117659 117661 117662) A. subfusiformis, Pseudobythocypris changxingensis (117601 117655 117664 117668 117669) A. visnyoensis (97925) A. zhongyingensis (97905 97923) A. zhongyingensis, A. changxingensis, A. subfusiformis (97896) A. zhongyingensis, A. subfusiformis (97910 97919) A. zhongyingensis, A. subfusiformis, A. visnyoensis (97920) Pseudobythocypris changxingensis (117592 117665 117666 117667 117670 117673 127570) | |
| Changhsingian | Slovenia | A. sp. (234875) | |
| Changhsingian | China (Hubei) | A. adunca (149226) | |
| Changhsingian | Saudi Arabia | A. sp. 1 (87277) | |
| Griesbachian | Hungary | A. jeanvannieri (140069 140070 140071 140072 140073 140076) A. sp. F, A. jeanvannieri (140075) | |
| Griesbachian | Saudi Arabia | A. sp. 2 (87279) | |
| Griesbachian | China (Zhejiang) | A. subfusiformis (116316) | |
| Griesbachian | Iran | A. pervagata (168932) | |
| Griesbachian | China (Xizang) | A. subfusiformis (106667) | |
| Griesbachian | Türkiye | A. sp. 1 (169063) | |
| Induan | China (Sichuan) | A. sp. (45895) | |
| Smithian | China (Xizang) | A. goemoeryi (112018) A. goemoeryi, A. symmetrica (112022) | |
| Smithian | China (Guangxi) | A. nostorica (106647) | |
| Spathian | China (Xizang) | A. goemoeryi (112033) A. sp. A (112028) A. sp. B (112032) | |
| Spathian - Anisian | Israel | A. sp. (156823) | |
| Aegean | Romania | A. goemoeryi (154986 154988 154989 154990 154992 154993 154995 154997 154998 155001 155002) A. sp. 1, A. goemoeryi (154996) | |
| Anisian | Romania | A. goemoeryi (48556 48635 48636 48637) A. sp.6, A. goemoeryi (48608) | |
| Bithynian | Romania | A. goemoeryi (155004) A. sp. 1 (155005) A. sp. 1, A. caeracella, A. goemeryi (197722) | |
| Illyrian | Hungary | A. goemoeryi, A. triassica (135823) | |
| Ladinian | Iran | A. sp. (97874) | |
| Julian | Türkiye | A. spp., A. goemoeryi, A. triassica, A. kollmanni (197740) | |
| Sevatian | Canada (Yukon) | A. sp. 1 (225000 225002) A. sp. 1, A. sp. 2 (225001) | |
| Angulata | Germany | A. sp. B (139805) A. sp. B, A. sp. C (139807) | |
| Planorbis | Germany | A. sp. B (139803) | |
| Raricostatum | Germany | A. sp. C (139814) | |
| Sinemurian | Germany | A. sp. (33516) | |
| Early/Lower Pliensbachian | Germany | A. sp. C (139818 139819) | |
| Jamesoni | Türkiye | A. sp. (158463) |