| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Trigonocerca typica was named by Ross (1951) [Paratypes: YPM 18148-9, 18333, 18227-8]. Its type specimen is YPM 18147, a cephalon/head (cranidium), and it is a 3D body fossil. It is the type species of Trigonocerca.
Synonymy list
| Year | Name and author |
|---|---|
| 1951 | Trigonocerca typica Ross p. 104 figs. Pl. 26, figs. 11-13 |
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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.
†Trigonocerca typica Ross 1951
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Hendy et al. 2009, Hendy 2009, Aberhan et al. 2004 | |||||
Age range: Blackhillsian or 474.90000 to 470.00000 Ma
Collections (20 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Blackhillsian | USA (Nevada) | Trigonocerca typica (104551 104571) | |
| Blackhillsian | USA (Utah) | Trigonocerca typica (69261 103888 103889 104067 104119 104120 104121 104122 104124 104125 104126 104127 104138 104149 105780) | |
| Blackhillsian | USA (Idaho) | Trigonocerca typica (103796 103797 103798) |