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Maoritrigonia chekhovi
Taxonomy
Maoritrigonia chekhovi was named by Bychkov (1985). Its type specimen is SVPGO 46/858 and is a 3D body fossil. Its type locality is Kenkereveem River, Kenkeren Ridge, Koryak (lower-middle Norian), which is in a Lacian/Alaunian carbonate limestone in the Russian Federation.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1985 | Maoritrigonia chekhovi Bychkov p. 15 figs. Pl 4, figs 10-13 |
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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.
†Maoritrigonia chekhovi Bychkov 1985
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| valve height | 2 | 40.4 | 33.7 | 48.5 | 41.1 | 10.5 |
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| Source: f = family | |||||
| References: Aberhan et al. 2004, Ros-Franch et al. 2014 | |||||
Age range: Alaunian or 215.38000 to 211.18000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Lacian - Alaunian | Russian Federation | Maoritrigonia chekhovi (type locality: 136161) | |
| Alaunian | Russian Federation | Maoritrigonia chekhovi (136160) |