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Fallotaspis
Taxonomy
Fallotaspis was named by Hupé (1953) [Sepkoski's age data: Cm Atda-l Sepkoski's reference number: 472,476,522,885]. Its type is Fallotaspis typica.
It was assigned to Fallotaspidinae by Palmer and Repina (1993), Geyer (1996); to Fallotaspididae by Whittington et al. (1997), Lieberman (2002); and to Olenellida by Sepkoski (2002).
It was assigned to Fallotaspidinae by Palmer and Repina (1993), Geyer (1996); to Fallotaspididae by Whittington et al. (1997), Lieberman (2002); and to Olenellida by Sepkoski (2002).
Species
F. antecedens, F. bondoni, F. inexspectatus, F. plana, F. planospinosa, F. tazemmourtensis, F. typica (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1953 | Fallotaspis Hupé |
| 1993 | Fallotaspis Palmer and Repina p. 27 fig. 7.2 |
| 1996 | Fallotaspis Geyer p. 162 |
| 1997 | Fallotaspis Whittington et al. p. 418 |
| 2002 | Fallotaspis Lieberman p. 701 |
| 2002 | Fallotaspis 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.
G. †Fallotaspis Hupé 1953
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†Fallotaspis antecedens Geyer 2019
†Fallotaspis bondoni Neltner and Poctey 1950
†Fallotaspis inexspectatus Geyer 1996
†Fallotaspis plana Hupé 1953
†Fallotaspis planospinosa Hupé 1953
†Fallotaspis tazemmourtensis Hupé 1953
†Fallotaspis typica Hupé 1953
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. R. Palmer and L. N. Repina 1993 | Fallotaspidinae with posterior margin of cephalon straight or gently curved forward distally. Intergenal spine not developed, but intergenal ridge inter- secting posterior border closer to glabella than to genal spine. Glabella slightly tapered forward. Ocular lobes directed posterolaterally from junction with L4. Width of interocular area half or less width of extraocular area. Thorax of 21 segments; 17 in prothorax, 4 in opisthothorax. Opisthothorax not strongly differentiated. Pleural regions, excluding spines, about same width as axis. Third thoracic segment macropleural. Pygidium small, subquadrate. | |
| G. Geyer 1996 | Fallotaspidinae with glabella tapered for- ward; ocular Iobes directed posterolaterally, eye ridges faintly narrewer than posterior ocular Iobes ; width of interocular area about half or less width of extraocular area; intergenal spine only visible in immature indivi- duals; thorax with macropleural third segment; opis- thothorax weakly differentiated. |
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Aberhan et al. 2004, Whittington et al. 1997, Hendy et al. 2009 | |||||
Age range: base of the Meishucunian to the top of the Atdabanian or 530.70000 to 516.00000 Ma
Collections (18 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Meishucunian - Tommotian | Mexico (Sonora) | F. sp. (210980) | |
| Atdabanian | Morocco | F. antecedens (233941) F. bondoni (232768) F. plana (232772 232774 233944 233953) F. plana, F. bondoni (232773) F. sp. (80899 225084 232769) F. tazemmourtensis, F. plana (233945) F. tazemmourtensis, F. planospinosa (80900) | |
| Atdabanian | Mongolia | F. mongolicus (232790) | |
| Atdabanian | Morocco (Ant-Atlas) | F. typica (232863) | |
| Atdabanian | Russian Federation (Yakutia) | F. sp. (10065) | |
| Montezuman - Atdabanian | USA (Nevada) | F. bondoni (10575) | |
| Montezuman | Mexico | F. sp. (10680) |