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Trigonia hemisphaerica
Taxonomy
Trigonia hemisphaerica was named by Lycett (1877). It is not extant.
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. denticulata, 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. spinulosa, T. stelzneri, T. tenuis, T. trafalgarensis, T. kuchensis, T. elongata, T. nitida, T. tumida
Synonymy list
Year | Name and author |
---|---|
1877 | Trigonia hemisphaerica Lycett p. 174 figs. Pl. 31.4-8, Pl. 33.3-6 |
1879 | Trigonia hemisphaerica Lycett p. 174 figs. 31.4-8, 33.4-6 |
1916 | Trigonia hemisphaerica Douvillé p. 29 figs. Pl. 4, Fig. 9 |
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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 hemisphaerica Lycett 1877
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Diagnosis
No diagnoses are available