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Bairdia folgeri
Taxonomy
Bairdia folgeri was named by Kellett (1934). Its type specimen is USNM 89483a and is a 3D body fossil.
It was recombined as Cryptobairdia folgeri by Shi and Chen (1987) and Yi (2004); it was recombined as Bairdia (Cryptobairdia) folgeri by Crasquin-Soleau (1997).
It was recombined as Cryptobairdia folgeri by Shi and Chen (1987) and Yi (2004); it was recombined as Bairdia (Cryptobairdia) folgeri by Crasquin-Soleau (1997).
Sister 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. exoura, B. fabaeformis, B. fusca, B. gibbosa, 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. meishanensis, B. moorei, B. mucronata, B. multihilosa, B. nitida, B. oklahomensis, B. opisthorhadina, B. paraproba, B. peneovoidea, B. philippovae, B. pinnula, B. proxischimensis, B. psiegorkiensis, B. rectifrontis, B. singularis, B. soldadensis, B. subcitriformis, B. subeleziana, B. subvexa, B. summa, B. turgida, B. urodeliformis, B. virga, B. feliumgibba, B. pompillioides, B. gliberti
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1934 | Bairdia folgeri Kellett |
| 1978 | Bairdia mirabilis Guan |
| 1978 | Bairdia xintanensis Sun |
| 1987 | Cryptobairdia folgeri Shi and Chen p. 44 figs. Pl 5, figs 21-26 |
| 1997 | Bairdia (Cryptobairdia) folgeri Crasquin-Soleau p. 68 figs. Pl 6, figs 6,7 |
| 1998 | Bairdia folgeri Crasquin-Soleau figs. Pl 8, fig 8 |
| 2004 | Cryptobairdia folgeri Yi |
| 2007 | Bairdia folgeri Crasquin-Soleau p. 230 |
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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.
†Bairdia folgeri Kellett 1934
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Invalid names: Bairdia mirabilis Guan 1978 [synonym], Bairdia xintanensis Sun 1978 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| carapace height | 9 | 0.590 | 0.410 | 0.690 | 0.640 | 0.087 | |
| shell height | 1 | 0.240 | - | - | - | - |
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| Source: o = order, c = class | |||||
| References: Jell and Adrain 2002, Kiessling 2004 | |||||
Age range: base of the Gzhelian to the top of the Changhsingian or 303.70000 to 252.17000 Ma
Collections (18 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Gzhelian | USA (Kansas) | Bairdia folgeri (132994 133136 133142 133155 133159) | |
| Gzhelian | USA (Oklahoma) | Bairdia folgeri (132995 133161) | |
| Artinskian | China (Fujian) | Cryptobairdia folgeri (95700) | |
| Artinskian | Canada (British Columbia) | Bairdia folgeri (106670) | |
| Kungurian | China (Fujian) | Cryptobairdia folgeri (95705 95706) | |
| Wuchiapingian | Greece | Bairdia folgeri (112056) | |
| Changhsingian | China (Fujian) | Cryptobairdia folgeri (121228 121230 121289 121291 121292) | |
| Changhsingian | China (Xizang) | Bairdia folgeri (106649) |