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Trigonia oregona
Taxonomy
Trigonia evansana oregona was named by Packard (1921).
It was recombined as Trigonia oregona by Anderson (1958).
It was recombined as Trigonia oregona by Anderson (1958).
Sister species lacking formal opinion data
T. aliformis, T. bella, T. brevicostata, T. carinata, T. clavigera, T. conradi, T. corderoi, T. costata, T. crebraecostata, T. elongata, T. guadalupae, T. kenti, T. kidugalloensis, T. leckenbyi, T. libanotica, T. literata, T. loutfyi, T. migeodi, T. mollesensis, T. proelanza, T. prora, T. stelzneri, T. tenuis, T. trafalgarensis, T. kuchensis, T. elongata, T. nitida, T. tumida
Synonymy list
| Year | Name and author |
|---|---|
| 1921 | Trigonia evansana oregona Packard p. 26 figs. PI. 9, fig. 7 |
| 1958 | Trigonia oregona Anderson p. 116 |
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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.
†Trigonia oregona Packard 1921
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| Reference: Aberhan et al. 2004 | |||||
Collections
No collection or age range data are available