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Bairdiacypris
Taxonomy
Bairdiacypris was named by Bradfield (1935).
It was assigned to Bairdiinae by Forel (2022); and to Bairdiidae by Hoare and Mapes (2000), Crasquin (2008), Sebe et al. (2013), Chitnarin (2017), Forel (2017), Forel (2017), Tanaka (2018), Chitnarin and Ketwetsuriya (2021), Kolar-Jurkovšek et al. (2024).
It was assigned to Bairdiinae by Forel (2022); and to Bairdiidae by Hoare and Mapes (2000), Crasquin (2008), Sebe et al. (2013), Chitnarin (2017), Forel (2017), Forel (2017), Tanaka (2018), Chitnarin and Ketwetsuriya (2021), Kolar-Jurkovšek et al. (2024).
Species
Actuaria diffusa, Actuaria suksuensis, B. aequisymmetrica, B. anisica (syn. B. galbruni), B. badgerai, B. bistiensis, B. caeca, B. changxingensis, B. combeae, B. deloi, B. fornicata, B. guangpingensis, B. haqanaensis, B. hayasakai, B. ikeyanoriyukii, B. kathleenae, B. longirobusta, B. mirabilis, B. mirautaae, B. opulenta, B. ottomanensis, B. postretiformis, B. praewangi, B. reniformis, B. sartriensis, B. sinensis, B. sorgunensis, B. suprapermiana, B. triassica, B. ventralis, B. wangi, B. wangi, B. zaliensis
Species lacking formal opinion data
B. anteroangulosa, B. curvis, B. dorisae, B. dubius, B. elongatissima, B. glabella, B. haqananensis, B. irregularis, B. jonesiana, B. martinae, B. memorabilis, B. mirautae, B. multidentata, B. postrectiformis, B. quarziana, B. rectangularis, B. regularis, B. sobiekurowensis, B. sobiekurowiensis, B. subrectangularis, B. triangularis, B. tumida, B. vaga, B. virga, B. zigulensis
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1935 | Bairdiacypris Bradfield |
| 1956 | Actuaria Schneider p. 91 |
| 2000 | Bairdiacypris Hoare and Mapes p. 13 |
| 2008 | Bairdiacypris Crasquin p. 248 |
| 2013 | Bairdiacypris Sebe et al. p. 516 |
| 2017 | Bairdiacypris Chitnarin p. 670 |
| 2017 | Bairdiacypris Forel |
| 2018 | Bairdiacypris Tanaka p. 15 |
| 2021 | Bairdiacypris Chitnarin and Ketwetsuriya p. 5 |
| 2022 | Bairdiacypris Forel p. 338 |
| 2024 | Bairdiacypris Kolar-Jurkovšek et al. p. 185 |
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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. †Bairdiacypris Bradfield 1935
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†Bairdiacypris aequisymmetrica Mette 2014
†Bairdiacypris anisica Kozur 1971
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Invalid names: Bairdiacypris galbruni Crasquin-Soleau and Gradinaru 1996 [synonym]
†Bairdiacypris badgerai Ferdinando 2001
†Bairdiacypris bistiensis Crasquin-Soleau 1998
†Bairdiacypris caeca Shi 1987
†Bairdiacypris changxingensis Shi 1987
†Bairdiacypris combeae Forel 2011
†Bairdiacypris deloi Bradfield 1935
†Bairdiacypris fornicata Shi 1982
†Bairdiacypris guangpingensis Yi 1993
†Bairdiacypris haqanaensis Gerry and Honigstein 1987
†Bairdiacypris hayasakai Tanaka 2013
†Bairdiacypris ikeyanoriyukii Tanaka 2018
†Bairdiacypris kathleenae Gliwa 2020
†Bairdiacypris longirobusta Chen 1958
†Bairdiacypris mirabilis Guan 1985
†Bairdiacypris mirautaae Crasquin-Soleau and Gradinaru 1996
†Bairdiacypris opulenta Zanina 1971
†Bairdiacypris ottomanensis Crasquin-Soleau et al. 2004
†Bairdiacypris postretiformis Lethiers 1989
†Bairdiacypris praewangi Kozur 1985
†Bairdiacypris reniformis Chen 1958
†Bairdiacypris sartriensis Donze 1966
†Bairdiacypris sinensis Chen 1958
†Bairdiacypris sorgunensis Forel 2018
†Bairdiacypris suprapermiana Kozur 1985
†Bairdiacypris triassica Kozur 1971
†Bairdiacypris ventralis Chen 1958
†Bairdiacypris wangi Olempska 1999
†Bairdiacypris wangi Kozur 1985
†Bairdiacypris zaliensis Mette 2010
Invalid names: Actuaria Schneider 1956 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| carapace height | 39 | 0.454 | 0.280 | 0.770 | 0.450 | 0.124 | |
| shell height | 11 | 0.397 | 0.260 | 0.510 | 0.400 | 0.084 | |
| valve height | 26 | 0.411 | 0.270 | 0.870 | 0.378 | 0.158 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Jell and Adrain 2002 | |||||
Age range: base of the Late/Upper Frasnian to the top of the Thouarsense or 375.20000 to 174.70000 Ma
Collections (475 total)
Oldest occurrences | |||
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Frasnian | Afghanistan (Ghazni) | B. sp. (75031) | |
| Late/Upper Frasnian | Poland | B. martinae (35388) B. martinae, B. sobiekurowensis, B. irregularis, B. quarziana (35387) B. martinae, B. sobiekurowiensis (35386) B. martinae, B. sobiekurowiensis, B. virga (35393) B. martinae, B. virga (35389) B. sobiekurowiensis, B. virga, B. quarziana (35390 35391) B. sp. (35399) B. sp. nov. A, B. quarziana (35392) B. virga (35394 35396) B. virga, B. quarziana (35397 35398 35400) B. virga, B. quarziana, B. zigulensis (35401) | |
| Late/Upper Frasnian | Poland (Kostomloty) | B. sobiekurowiensis, B. sp. A., B. martinae, B. irregularis (162220) B. sobiekurowiensis, B. sp., B. vaga, B. sp. A., B. anteroangulosa, B. sp. C, B. sp. B, B. irregularis (162212) B. sp. C, B. sp. A., B. irregularis (162211) B. vaga (162214) | |
| Early/Lower Famennian | Poland | B. quarziana (35403 35408 35411) B. quarziana, B. zigulensis (35402 35405) B. sobiekurowiensis (35409) | |
| Early/Lower Famennian | USA (Nevada) | B. martinae, B. quarziana, B. anteroangulosa (158171) | |
| Tournaisian | China (Guizhou) | B. wangi (58462) | |
| Morrowan | USA (Texas) | B. sp. A, B. sp. B (236937) | |
| Kashirian | Ukraine | B. sp. (216041) | |
| Asselian | Austria | B. sp. (108503 108504) | |
| Asselian | Greece | B. ventralis (112051) | |
Youngest occurrences |
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| Time interval | Ma | Country or state | PBDB collection number |
| Tenuicostatum | Portugal | B. rectangularis, B. triangularis, B. sp. (33475) B. triangularis (33474) | |
| Toarcian | United Kingdom (Wales) | B. triangularis (33497) | |
| Bifrons | Austria | B. form B, B. form E, B. form F, B. sartriensis (139827 139828) | |
| Bifrons | Spain | B. dorisae (119593) | |
| Bifrons | United Kingdom (Somerset) | B. spp. (33346 33347) | |
| Bifrons | Portugal | B. rectangularis (33479) B. rectangularis, B. triangularis (33478 33481 33482) | |
| Levesquei | Portugal | B. rectangularis (33485) B. subrectangularis (33487) | |
| Levesquei | Austria | B. form A, B. form B, B. form D, B. form E, B. form F, B. form G, B. sartriensis (139829) B. form A, B. form E, B. form F, B. form G, B. sartriensis (139830) | |
| Variabilis | Portugal | B. triangularis (33483) | |
| Thouarsense | United Kingdom (Somerset) | B. spp. (33350) | |