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Ptychagnostus seminula
Taxonomy
Agnostus seminula was named by Whitehouse (1939).
It was recombined as Onymagnostus seminula by Robison (1984); it was recombined as Ptychagnostus seminula by Westrop et al. (1996).
It was recombined as Onymagnostus seminula by Robison (1984); it was recombined as Ptychagnostus seminula by Westrop et al. (1996).
Synonymy list
| Year | Name and author |
|---|---|
| 1939 | Agnostus seminula Whitehouse p. 254 figs. pl. 25, fig. 24 |
| 1984 | Onymagnostus seminula Robison p. 54 |
| 1996 | Ptychagnostus seminula Westrop et al. p. 819 |
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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.
†Ptychagnostus seminula Whitehouse 1939
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family | |||||
| Reference: Hendy 2009 | |||||
Collections (18 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Amgan | USA (Utah) | Ptychagnostus seminula (225065 225070) | |
| Solvan | Canada (Newfoundland and Labrador) | Onymagnostus seminula (10819 10826 10827 10832 10836) | |
| Arcadian | Canada (Newfoundland and Labrador) | Ptychagnostus seminula (9690) | |
| Middle Cambrian | USA (Utah) | Ptychagnostus seminula (156504 156505) | |
| Middle Cambrian | USA (Nevada) | Ptychagnostus seminula (156500 156501) | |
| Marjumian | Canada (Newfoundland and Labrador) | Ptychagnostus seminula (9684 9687 9691) | |
| Undillan | Australia (Queensland) | Onymagnostus seminula (225218 225221 225223) |