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Trigonia (Kumatrigonia)
Taxonomy
Kumatrigonia was named as a genus. It is not extant.
It was reranked as Trigonia (Kumatrigonia) by Bychkov (1985).
It was assigned to Trigonia by Bychkov (1985); and to Trigonioida by Sepkoski (2002).
It was reranked as Trigonia (Kumatrigonia) by Bychkov (1985).
It was assigned to Trigonia by Bychkov (1985); and to Trigonioida by Sepkoski (2002).
Subtaxa
Species lacking formal opinion data
Trigonia aliexpandita, Trigonia alta, Trigonia americana, Trigonia angulicostata, Trigonia angustata, Trigonia bella, Trigonia castor, Trigonia cerulia, Trigonia chariensis, Trigonia cincta, Trigonia clavigera, Trigonia conradi, Trigonia corderoi, Trigonia corderoi, Trigonia cornueli, Trigonia costata, Trigonia costata, Trigonia costulata, Trigonia crebraecostata, Trigonia daedalea, Trigonia dainellii, Trigonia densestriata, Trigonia denticulata, Trigonia elegantissima, Trigonia elongata, Trigonia elongata, Trigonia elongata, Trigonia enfaulensis, Trigonia eufalensis, Trigonia gihbosn, Trigonia guadalupae, Trigonia haboensis, Trigonia herzogi, Trigonia higazi, Trigonia hondaana, Trigonia incrassata, Trigonia ingens, Trigonia interlaevigata, Trigonia kenti, Trigonia kheraensis, Trigonia kidugalloensis, Trigonia kuchensis, Trigonia latezonata, Trigonia leckenbyi, Trigonia lewisi, Trigonia libanotica, Trigonia lingonense, Trigonia losadai, Trigonia loutfyi, Trigonia migeodi, Trigonia mirandaensis, Trigonia mollesensis, Trigonia mollesensis, Trigonia moretoni, Trigonia mortoni, Trigonia muelleri, Trigonia munita, Trigonia nitida, Trigonia nitida, Trigonia papillata, Trigonia proelanza, Trigonia propinqua, Trigonia prora, Trigonia proscabra, Trigonia pseudomeriani, Trigonia pulchella, Trigonia pulla, Trigonia quadrangularis, Trigonia sanctae-crucis, Trigonia senex, Trigonia similis, Trigonia similis, Trigonia spinulosa, Trigonia stelzneri, Trigonia sumiyagura, Trigonia teali, Trigonia tenuis, Trigonia trafalgarensis, Trigonia triangulare, Trigonia tuberculata, Trigonia tumida, Trigonia varians, Trigonia weidmanni
Synonymy list
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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.
Subg. †Trigonia (Kumatrigonia)
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†Kumatrigonia tanourensis Tamura 1959
†Trigonia (Kumatrigonia) nemtinovi Bychkov 1985
†Trigonia (Kumatrigonia) qiaotouensis Lu 1981
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| valve height | 5 | 24.5 | 18.4 | 32.4 | 24.5 | 5.46 |
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| Source: f = family | |||||
| References: Ros-Franch et al. 2014, Aberhan et al. 2004 | |||||
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Carnian | Japan (Kumamoto) | Frenguelliella tanourensis (40556) | |
| Carnian - Norian | China (Xizang) | Trigonia sp. (85521) | |
| Lacian - Alaunian | Russian Federation | Trigonia nemtinovi (136158 136161) | |
| Norian | China (Qinghai) | Trigonia qiaotouensis (200769) | |
| Norian - Rhaetian | USA (Idaho) | Trigonia sp. (99505) | |
| Alaunian | Russian Federation | Trigonia nemtinovi (136160) |