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Trigonia antiqua
Taxonomy
Trigonia antiqua was named by d'Orbigny (1842). It is a 3D body fossil. Its type locality is Yaurichambi (d'Orbigny coll), which is in an Asselian open shallow subtidal limestone in the Copacabana Formation of Bolivia.
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 |
|---|---|
| 1842 | Trigonia antiqua d'Orbigny p. 44 figs. Pl 3, figs 12,13 |
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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.
†Trigonia antiqua d'Orbigny 1842
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| valve height | 1 | 18.0 |
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| Source: o = order, c = class | |||||
| Reference: Aberhan et al. 2004 | |||||