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Ptychaspis miniscaensis
Taxonomy
Dikelocephalus miniscaensis was named by Owen (1852). It is not extant.
It was recombined as Ptychaspis miniscaensis by Hall (1863).
It was recombined as Ptychaspis miniscaensis by Hall (1863).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1852 | Dikelocephalus miniscaensis Owen p. 574 figs. figs. 3a, b |
| 1863 | Ptychaspis miniscaensis Hall p. 171 |
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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.
†Ptychaspis miniscaensis Owen 1852
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, o = order, c = class | |||||
| References: Hendy 2009, Hendy et al. 2009, Whittington et al. 1997, Aberhan et al. 2004 | |||||
Age range: Sunwaptan or 493.50000 to 488.90000 Ma
Collections (21 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Franconian | USA (South Dakota) | Ptychaspis miniscaensis (9734 9745 9747 9748 9751) | |
| Franconian | USA (Minnesota) | Ptychaspis miniscaensis (62112 62114 62115 62116 62117 62118 62119 62120 62121 62122 62123 62124) | |
| Sunwaptan | Canada (Alberta) | Ptychaspis miniscaensis (54090 64687 81296 81306) |