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Parafallotaspis
Taxonomy
Parafallotaspis was named by Fritz (1972) [Sepkoski's age data: Cm Atda-l Sepkoski's reference number: 475]. It is not extant. Its type is Parafallotaspis grata.
It was assigned to Fallotaspidinae by Palmer and Repina (1993); to Fallotaspididae by Whittington et al. (1997); and to Olenellida by Sepkoski (2002).
It was assigned to Fallotaspidinae by Palmer and Repina (1993); to Fallotaspididae by Whittington et al. (1997); and to Olenellida by Sepkoski (2002).
Species
P. grata (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1972 | Parafallotaspis Fritz |
| 1993 | Parafallotaspis Palmer and Repina p. 28 fig. 7.6 |
| 1997 | Parafallotaspis Whittington et al. p. 418 |
| 2002 | Parafallotaspis 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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. R. Palmer and L. N. Repina 1993 | Fallotaspidinae with posterior margin of cephalon nearly straight or slightly backswept. Glabella moderately tapered forward. Plectrum strongly developed. Ocular lobes directed posterolaterally from junction with
L4. Width of interocular area slightly more than half width of extraocular area opposite midlength of ocular lobe. Posterior tips of ocular lobes opposite occipital ring. |
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Whittington et al. 1997, Aberhan et al. 2004, Hendy et al. 2009 | |||||
Age range: base of the Montezuman to the top of the Atdabanian or 520.00000 to 516.00000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Montezuman - Atdabanian | USA (Nevada) | P. sp. no. 3 (10576) | |
| Montezuman - Waucoban | Canada (Northwest Territories) | P. grata (156024) |