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Bairdia
Taxonomy
Bairdia was named by M'Coy (1844) [Sepkoski's age data: O Ashg-m R Sepkoski's reference number: 855]. It is extant. Its type is Bairdia curtus. It is the type genus of Bairdiidae, Bairdiacea, Bairdiinae.
It was reranked as Cythere (Bairdia) by Jones (1850).
It was assigned to Cythere by Jones (1850); to Bairdidae by Alexander (1934); to Podocopida by Sepkoski (2002); to Bairdiinae by Kollmann (1963), Kozur (1985), Forel (2022); and to Bairdiidae by Harlton (1933), Bertels (1968), Crasquin-Soleau (1999), Crasquin (2008), Sebe et al. (2013), Zazzali et al. (2015), Abushik and Evdokimova (2016), Chitnarin (2017), Forel (2017), Forel (2017), Tanaka (2018), Chitnarin and Ketwetsuriya (2021), Kolar-Jurkovšek et al. (2024).
It was reranked as Cythere (Bairdia) by Jones (1850).
It was assigned to Cythere by Jones (1850); to Bairdidae by Alexander (1934); to Podocopida by Sepkoski (2002); to Bairdiinae by Kollmann (1963), Kozur (1985), Forel (2022); and to Bairdiidae by Harlton (1933), Bertels (1968), Crasquin-Soleau (1999), Crasquin (2008), Sebe et al. (2013), Zazzali et al. (2015), Abushik and Evdokimova (2016), Chitnarin (2017), Forel (2017), Forel (2017), Tanaka (2018), Chitnarin and Ketwetsuriya (2021), Kolar-Jurkovšek et al. (2024).
Species
B. (Cryptobairdia), B. (Rectobairdia), B. accuminata, B. acrisa, B. acuta, B. adelineae, B. akasakaensis, B. aksala, B. altiacuta, B. altiarcus, B. anachoreta, B. anbeedei, B. anisica, B. anisicaforma, B. anisongae, B. araxensis, B. ardmorensis, B. armenica, B. atudoreii, B. avrami, B. balatonica, B. bariudini, B. bassoni, B. baudini (syn. B. subsymmetrica), B. beedei (syn. B. marmorea), B. broutini, B. cahuzaci, B. calida, B. carinata, B. celsa, B. changyangensis, B. chaotianensis, B. chasae, B. cheni, B. cheni, B. citriformis, B. clio, B. crassa, B. cristata, B. curta, B. dadayi, B. davehornei, B. deducta, B. deformata, B. demissa, B. deweveri, B. diffusa, B. dongpanensis, B. donzei, B. dorsalta, B. eissensis, B. elongatella, B. elongatum, B. episkopiensis, B. eucurvia, B. fangnianqiaoi, B. fengshanensis, B. finalyi, B. folgeri (syn. B. xintanensis, B. mirabilis), B. fontainei, B. forakerensis, B. fortis (syn. B. crassa), B. fujisan, B. fusiformis, B. gaelleae, B. galei, B. garrisonensis, B. geinitziana, B. geisi, B. girtyi (syn. B. attenuata), B. gracilis, B. grahamensis (syn. B. deloi), B. grayi, B. grotei, B. guangxiensis, B. guttulae, B. hassi, B. hazzardi, B. herrigi, B. heshanensis, B. hiwanneensis, B. hoffmanae, B. hooverae, B. huberti, B. hugluensis, B. hupeiensis, B. hurwitzi, B. ikeyai, B. imposita, B. incisedorsa, B. indefinita, B. intermedia, B. ishizakii, B. jeancharlesi, B. jeromei, B. kandyzensis, B. kansasensis, B. kanwakensis, B. kemerensis, B. khaokanaensis, B. kutorgiana, B. kwanshanensis, B. letangae, B. limatusformis, B. liviae, B. longoarcuata, B. lungtanensis, B. macdonnelli, B. magna, B. mandruella, B. marginicompressa, B. megedensis, B. menardensis, B. mianyangensis, B. michelseni, B. minoensis, B. modica, B. molesta, B. monostorii (syn. B. humilis), B. monstrabilis, B. mui, B. munda, B. nagaiwensis, B. nagyvisnyoensis, B. nishiwakii, B. ogakiensis, B. oklahomaensis, B. omanensis, B. ortiseiensis, B. paussi, B. pecosensis, B. perincerta, B. permagna, B. permiana, B. perpusilla, B. pierrevalentini, B. piscariformis, B. plebeia, B. pompilioides, B. portellaensis, B. postacuta, B. pruniseminata, B. pseudoglennensis, B. pulchra, B. radlerae, B. reussiana, B. rhomboidalis, B. rigasensis, B. rostrata, B. scholli, B. sinensis, B. sinuosa, B. sobolevensis, B. songthami, B. spindlica, B. subcontracta, B. subdeltoidea, B. subfusiformis, B. subhassi, B. subleguminoides, B. suborbiculata, B. szaszi, B. taan, B. tagaensis, B. takfaensis, B. thikiaensis, B. tongluensis, B. trianguliformis, B. trigonosymmetrica, B. undulata, B. urodeloformis, B. verwiebei, B. vyasovkensis, B. wailiensis, B. wangi (syn. Fabalicypris brevis), B. whortani, B. woodwardsensis, B. wushunbaoi, B. xiaobaensis, B. yangi, B. yukonensis, B. zhongyingensis, B. ziguiensis
Species lacking formal opinion data
B. africana, B. altifrons, B. anomala, B. antamputata, B. auricula, B. austriaca, B. billjohnsoni, B. birinae, B. bradfieldi, B. cassiana, B. ciscoensis, B. colonensis, B. condylus, B. confragosaeformis, B. crebra, B. croneisi, B. croskeina, B. cultrijugati, B. dissortis, B. dolicha, B. egorovi, B. eleziana, B. eleziana, B. exoura, B. fabaeformis, B. feliumgibba, B. fusca, B. gibbosa, B. gliberti, B. gosportensis, B. haworthi, B. hilda, B. hisingeriformis, B. hispida, B. hiwannensis, B. hondurasensis, B. isoscelata, B. kaschewarovae, B. kawakensis, B. kelleri, B. kinderhookensis, B. knuepferi, B. legumen, B. longisetosa, B. manifesta, B. meishanensis, B. moorei, B. mucronata, B. multihilosa, B. nitida, B. oklahomensis, B. opisthorhadina, B. paraproba, B. peneovoidea, B. philippovae, B. pinnula, B. pompillioides, B. proxischimensis, B. psiegorkiensis, B. rectifrontis, B. singularis, B. soldadensis, B. subcitriformis, B. subeleziana, B. subvexa, B. summa, B. turgida, B. urodeliformis, B. virga
Synonymy list
| Year | Name and author |
|---|---|
| 1844 | Bairdia M'Coy |
| 1850 | Cythere (Bairdia) Jones p. 61 |
| 1933 | Bairdia Harlton p. 25 |
| 1934 | Bairdia Alexander p. 214 |
| 1963 | Bairdia Kollmann p. 165 |
| 1968 | Bairdia Bertels |
| 1985 | Bairdia Kozur p. 59 |
| 1999 | Bairdia Crasquin-Soleau p. 170 |
| 2002 | Bairdia Sepkoski |
| 2008 | Bairdia Crasquin p. 243 |
| 2013 | Bairdia Sebe et al. p. 516 |
| 2015 | Bairdia Zazzali et al. p. 292 |
| 2016 | Bairdia Abushik and Evdokimova p. 715 |
| 2017 | Bairdia Chitnarin p. 653 |
| 2017 | Bairdia Forel p. 18 |
| 2018 | Bairdia Tanaka p. 14 |
| 2021 | Bairdia Chitnarin and Ketwetsuriya |
| 2022 | Bairdia Forel p. 332 |
| 2024 | Bairdia Kolar-Jurkovšek et al. p. 184 |
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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. Bairdia M'Coy 1844
show all | hide all
Subg. †Bairdia (Cryptobairdia) Sohn 1960
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†Cryptobairdia bolzi Kozur 1985
†Cryptobairdia compacta Geis 1932
†Cryptobairdia convexa Hou 1954
†Cryptobairdia coryelli Roth and Skinner 1931
†Cryptobairdia distorta Yi 1993
†Cryptobairdia hians Kollmann 1963
†Cryptobairdia maddocksi Kozur 1985
†Cryptobairdia pelikani Kozur 1985
†Cryptobairdia postabscissa Kozur 1985
†Cryptobairdia seminalis Knight 1928
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Invalid names: Bairdia samplei Coryell and Booth 1933 [synonym], Bairdia tumida Upson 1933 [synonym]
†Cryptobairdia ventricosa Roth and Skinner 1930
Subg. †Bairdia (Rectobairdia) Sohn 1960
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†Bairdia (Rectobairdia) kershawi Crasquin 2008
†Bairdia (Rectobairdia) powersi Kellett 1934
†Bairdia (Rectobairdia) sandulescui Crasquin-Soleau and Gradinaru 1996
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Invalid names: Bairdia (Rectobairdia) garciai Crasquin-Soleau and Gradinaru 1996 [synonym]
†Rectobairdia emaciata Kesling and Kilgore 1952
†Rectobairdia firmata Chen 1982
†Rectobairdia symmetrica Cooper 1946
†Rectobairdia tantilla Kummerow 1953
†Bairdia accuminata Cooper 1946
†Bairdia acrisa Stepanaitys 1975
†Bairdia acuta Jones 1850
†Bairdia adelineae Forel 2012
†Bairdia akasakaensis Tanaka 2013
†Bairdia aksala Forel 2022
†Bairdia altiacuta Chen 1958
†Bairdia altiarcus Chen 1958
†Bairdia anachoreta Bertels 1968
†Bairdia anbeedei Belousova 1965
†Bairdia anisica Kozur 1970
†Bairdia anisicaforma Monostori 1994
†Bairdia anisongae Forel 2013
†Bairdia araxensis Belousova 1965
†Bairdia ardmorensis Harlton 1933
†Bairdia armenica Belousova 1965
†Bairdia atudoreii Crasquin-Soleau and Gradinaru 1996
†Bairdia avrami Crasquin-Soleau and Gradinaru 1996
†Bairdia balatonica Mehes 1911
†Bairdia bariudini Honigstein and Crasquin 2011
†Bairdia bassoni Crasquin 2010
†Bairdia broutini Crasquin 2010
†Bairdia cahuzaci Forel 2011
†Bairdia calida Chen 1958
†Bairdia carinata Drexler 1958
†Bairdia celsa Xie 1989
†Bairdia changyangensis Hou 1954
†Bairdia chaotianensis Zazzali et al. 2015
†Bairdia chasae Kellett 1934
†Bairdia cheni Crasquin 2008
†Bairdia cheni Olempska 1999
†Bairdia citriformis Knight 1928
†Bairdia clio Bizon 1960
†Bairdia crassa Harlton 1929
†Bairdia cristata Chen 1958
†Bairdia curta McCoy 1844
†Bairdia dadayi Mehes 1911
†Bairdia davehornei Forel 2013
†Bairdia deducta Zalanyi 1974
†Bairdia deformata Kollmann 1963
†Bairdia demissa Chen 1958
†Bairdia deweveri Crasquin 2010
†Bairdia diffusa Belousova 1965
†Bairdia dongpanensis Yuan and Crasquin-Soleau 2007
†Bairdia donzei Herrig 1979
†Bairdia dorsalta Yi 1993
†Bairdia eissensis Upson 1933
†Bairdia elongatella Sohn 1960
†Bairdia elongatum Münster 1830
†Bairdia episkopiensis Crasquin-Soleau 1998
†Bairdia eucurvia Ishizaki 1964
†Bairdia fangnianqiaoi Crasquin 2010
†Bairdia fengshanensis Crasquin-Soleau 2006
†Bairdia finalyi Mehes 1911
†Bairdia folgeri Kellett 1934
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Invalid names: Bairdia mirabilis Guan 1978 [synonym], Bairdia xintanensis Sun 1978 [synonym]
†Bairdia fontainei Chitnarin 2017
†Bairdia forakerensis Kellett 1934
†Bairdia fujisan Tanaka and Maeda 2012
†Bairdia fusiformis Hou 1954
†Bairdia gaelleae Crasquin 2010
†Bairdia galei Croneis and Thurman 1939
†Bairdia garrisonensis Upson 1933
†Bairdia geinitziana Jones 1850
†Bairdia geisi Kellett 1934
†Bairdia gracilis McCoy 1844
†Bairdia grayi Crespin 1945
†Bairdia grotei Chitnarin 2017
†Bairdia guangxiensis Guan 1978
†Bairdia guttulae Herrig 1979
†Bairdia hassi Sohn 1960
†Bairdia hazzardi Howe and Law 1936
†Bairdia herrigi Monostori 1996
†Bairdia heshanensis Chen 2002
†Bairdia hiwanneensis Howe and Law 1936
†Bairdia hoffmanae Kellett 1934
†Bairdia hooverae Kellett 1934
†Bairdia huberti Forel 2012
†Bairdia hugluensis Forel 2017
†Bairdia hupeiensis Hou 1954
†Bairdia hurwitzi Coryell and Booth 1933
†Bairdia ikeyai Tanaka 2012
†Bairdia imposita Gramm 1997
†Bairdia incisedorsa Chitnarin 2017
†Bairdia indefinita Gusseva 1972
†Bairdia intermedia Belousova 1965
†Bairdia ishizakii Crasquin-Soleau 1998
†Bairdia jeancharlesi Forel 2011
†Bairdia jeromei Forel 2012
†Bairdia kandyzensis Khivintseva 1969
†Bairdia kansasensis Kellett 1934
†Bairdia kanwakensis Kellett 1935
†Bairdia kemerensis Crasquin-Soleau et al. 2004
†Bairdia khaokanaensis Chitnarin 2017
†Bairdia kutorgiana Jones 1850
†Bairdia kwanshanensis Chen 1958
†Bairdia letangae Forel 2011
†Bairdia limatusformis Forel 2010
†Bairdia liviae Forel 2017
†Bairdia longoarcuata Monostori 1996
†Bairdia lungtanensis Chen 1958
†Bairdia macdonnelli Harlton 1929
†Bairdia magna Kotschetkova 1972
†Bairdia mandruella Forel 2017
†Bairdia marginicompressa Chen and Bao 1986
†Bairdia megedensis Honigstein and Crasquin 2011
†Bairdia menardensis Harlton 1929
†Bairdia mianyangensis Chen 1982
†Bairdia michelseni Herrig 1979
†Bairdia michelseni arcuatocauda Monostori 1996
†Bairdia minoensis Tanaka and Ono 2012
†Bairdia modica Chen 1958
†Bairdia molesta Apostolescu 1959
†Bairdia monstrabilis Cooper 1946
†Bairdia mui Hou 1954
†Bairdia munda Jiang 1995
†Bairdia nagaiwensis Ishizaki 1963
†Bairdia nagyvisnyoensis Kozur 1985
†Bairdia nishiwakii Tanaka and Nishimura 2013
†Bairdia ogakiensis Tanaka 2013
†Bairdia oklahomaensis Harlton 1927
†Bairdia omanensis Crasquin-Soleau 1999
†Bairdia ortiseiensis Crasquin 2008
†Bairdia paussi Crasquin 2010
†Bairdia pecosensis Delo 1930
†Bairdia perincerta Kellett 1934
†Bairdia permagna Geis 1932
†Bairdia permiana Hamilton 1942
†Bairdia perpusilla Bolz 1971
†Bairdia pierrevalentini Crasquin 2010
†Bairdia piscariformis Chen 1958
†Bairdia plebeia Reuss 1854
†Bairdia pompilioides Harlton 1928
†Bairdia portellaensis Crasquin 2008
†Bairdia postacuta Chen 1958
†Bairdia pruniseminata Sohn 1954
†Bairdia pseudoglennensis Sohn 1960
†Bairdia pulchra Belousova 1965
†Bairdia radlerae Kellett 1934
†Bairdia reussiana Kirkby 1858
†Bairdia rhomboidalis Hamilton 1942
†Bairdia rigasensis Crasquin-Soleau 1998
†Bairdia rostrata Issler 1908
†Bairdia scholli Coryell and Booth 1933
†Bairdia sinensis Hou 1954
†Bairdia sinuosa Morey 1936
†Bairdia sobolevensis Khivintseva 1969
†Bairdia songthami Chitnarin 2017
†Bairdia spindlica Tanaka and Yuan 2012
†Bairdia subcontracta Chen 1987
†Bairdia subdeltoidea von Muenster 1830
†Bairdia subfusiformis Hamilton 1942
†Bairdia subhassi Belousova 1965
†Bairdia subleguminoides Chen 1987
†Bairdia suborbiculata Alexander 1934
†Bairdia szaszi Crasquin-Soleau and Gradinaru 1996
†Bairdia taan Forel 2022
†Bairdia tagaensis Tanaka 2018
†Bairdia takfaensis Chitnarin et al. 2008
†Bairdia thikiaensis Crasquin-Soleau 1998
†Bairdia tongluensis Wang 2005
†Bairdia trianguliformis Chen 1958
†Bairdia trigonosymmetrica Monostori 1996
†Bairdia undulata Herrig 1979
†Bairdia urodeloformis Chen 1987
†Bairdia verwiebei Kellett 1934
†Bairdia vyasovkensis Khivintseva 1969
†Bairdia wailiensis Crasquin-Soleau 2006
†Bairdia whortani Kellett 1935
†Bairdia woodwardsensis Howe and Law 1936
†Bairdia wushunbaoi Crasquin 2010
†Bairdia xiaobaensis Xie 1989
†Bairdia yangi Hou 1954
†Bairdia yukonensis Forel 2022
†Bairdia zhongyingensis Wang 1978
†Bairdia ziguiensis Sun 1984
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| carapace height | 226 | 0.511 | 0.180 | 1.00 | 0.522 | 0.176 | |
| shell height | 55 | 0.540 | 0.240 | 1.10 | 0.540 | 0.191 | |
| valve height | 124 | 0.546 | 0.180 | 1.22 | 0.555 | 0.226 |
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| Source: o = order, c = class | |||||
| References: Jell and Adrain 2002, Kiessling 2004 | |||||
Age range: base of the Lochkovian to the top of the Early/Lower Pliocene or 419.62000 to 3.60000 Ma
Collections (1295 total)
Oldest occurrences | |||
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Lochkovian | Russian Federation | B. mutablis (13960) | |
| Lochkovian | Russian Federation (Arkhangel'skaya Oblast') | B. michailensis (40697) | |
| Pragian - Early/Lower Emsian | Russian Federation (Sverdlovskaya Oblast) | B. mucronata, B. cyrtia (81790) | |
| Early/Lower Emsian | Russian Federation | B. proba (35710 35712 35749) B. proba, B. navicula, B. mucronata, B. subsingularis (35711) | |
| Emsian - Eifelian | Brazil (Maranhao) | B. sp. (37118) | |
| Emsian - Eifelian | Brazil (Piaui) | B. sp. (37126) | |
| Late/Upper Emsian | Russian Federation | B. crebta (35716 35719) B. navicula, B. crebta (35718) B. navicula, B. crebta, B. cultrijugati (35717) B. navicula, B. mucronata, B. crebta, B. cultrijugati, B. sp. A (35720) | |
| Early/Lower Givetian | Czechia (Moravia) | B. kettneri (5767) | |
| Givetian | USA (Ohio) | B. devonica (76557 76565) Rectobairdia emaciata (81857 206972 206973 206974) | |
| Givetian | USA (Michigan) | Rectobairdia emaciata (38475 38476) | |
Youngest occurrences |
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| Time interval | Ma | Country or state | PBDB collection number |
| Middle Miocene | Poland | B. sp. (70539) | |
| Tortonian | Panama (Colón) | B. colonensis (93909) | |
| Late/Upper Miocene | USA (Maryland) | B. spp. (191407) | |
| Late/Upper Miocene | Puerto Rico | B. antillea, B. willisensis (94206) B. willisensis (94205) | |
| Late/Upper Miocene | Colombia (Atlántico) | B. dimorpha (93901) B. dimorpha, B. bradyi (93905) B. dimorpha, B. sp. (93900) | |
| Tortonian - Zanclean | Australia (Victoria) | B. amygdaloides, B. subdeltoidea (166810) | |
| Messinian | Algeria | B. sp. (70879) | |
| Messinian - Zanclean | North Atlantic | B. sp. (201874 201900) | |
| Early/Lower Pliocene | New Zealand | B. amygdaloides (73307) | |
| Zanclean | Australia (Victoria) | B. amygdaloidea, B. subdeltoidea (166744) | |