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Eofallotaspis
Taxonomy
Eofallotaspis was named by Sdzuy (1978) [Sepkoski's age data: Cm Atda-l Sepkoski's reference number: 885]. Its type is Eofallotaspis tioutensis.
It was assigned to Fallotaspidinae by Palmer and Repina (1993), Geyer (1996); to Fallotaspididae by Whittington et al. (1997); 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); and to Olenellida by Sepkoski (2002).
Species
E. prima, E. tioutensis (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1978 | Eofallotaspis Sdzuy pp. 89 - 89 |
| 1993 | Eofallotaspis Palmer and Repina p. 27 fig. 7.1.5 |
| 1996 | Eofallotaspis Geyer p. 162 |
| 1997 | Eofallotaspis Whittington et al. p. 418 |
| 2002 | Eofallotaspis 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. †Eofallotaspis Sdzuy 1978
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†Eofallotaspis prima Sdzuy 1978
†Eofallotaspis tioutensis Sdzuy 1978
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. R. Palmer and L. N. Repina 1993 | Fallotaspidinae with posterior margin of
cephalon nearly straight; small intergenal spine on poste- rior border approximately midway between axial furrow and genal spine. Glabella slightly tapered forward. Ocular lobes directed posterolaterally from junction with L4. Width of interocular area equal to or greater than width of ex- traocular area opposite midlength of ocular lobe. Occipi- tal ring simple. Thorax narrow; axis wider than pleural regions; third segment macropleural. External surface strongly pitted. | |
| G. Geyer 1996 | Fallotaspidinae with glabella slightly ta- pered forward ; ocular Iobes directed posterolaterally from L4, eye ridges distinctly narrewer than posterior ocular Iobes; width of interocular area equal, slightly smaller or greater than width of extraocular area; small intergenal spine present on posterior border; thorax with macropleural third segment; opisthothorax barely differentiated. |
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Hendy et al. 2009, Aberhan et al. 2004, Whittington et al. 1997 | |||||
Age range: base of the Montezuman to the top of the Atdabanian or 520.00000 to 516.00000 Ma
Collections (14 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Atdabanian | Morocco | E. prima (80878 233934 233938) E. sp. (80885 80894 80899) E. tioutensis (233939 233940 233941 233942 233948 233949 233950) | |
| Montezuman - Atdabanian | USA (Nevada) | E. sp. (10574) |