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Pseudagnostus securiger
Taxonomy
Agnostus securiger was named by Lake (1906). Its type specimen is GSM57650, a carapace, and it is a 3D body fossil.
It was recombined as Sulcatagnostus securiger by Kobayashi (1937); it was recombined as Pseudagnostus (Sulcatagnostus) securiger by Shergold (1977); it was recombined as Pseudagnostus securiger by Choi et al. (2004).
It was recombined as Sulcatagnostus securiger by Kobayashi (1937); it was recombined as Pseudagnostus (Sulcatagnostus) securiger by Shergold (1977); it was recombined as Pseudagnostus securiger by Choi et al. (2004).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1906 | Agnostus securiger Lake |
| 1937 | Sulcatagnostus securiger Kobayashi |
| 1977 | Pseudagnostus (Sulcatagnostus) securiger Shergold |
| 2004 | Pseudagnostus securiger Choi et al. |
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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.
†Pseudagnostus securiger Lake 1906
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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 | |||||
| References: Hendy 2009, Kiessling 2004 | |||||
Age range: base of the Taoyuanian to the top of the Steptoean or 495.20000 to 493.50000 Ma
Collections (9 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Steptoean | Canada (British Columbia) | Pseudagnostus securiger (219685) | |
| Dresbachian | Canada (Yukon) | Sulcatagnostus securiger (55231) | |
| Taoyuanian | South Korea | Pseudagnostus securiger (133444 133446 133447 133448 133449 133450) | |
| Taoyuanian | Russian Federation (Krasnoyar) | Pseudagnostus securiger (132504) |