| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Trigonodus orientalis
Taxonomy
Trigonodus orientalis was named by Bittner (1899). It is a 3D body fossil. Its type locality is Paris Bay, Russky Island (Exposure 37), which is in a Triassic marine horizon in the Russian Federation.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1899 | Trigonodus orientalis Bittner |
| 2009 | Trigonodus orientalis Kumagae and Nakazawa p. 165 figs. 144.18-144.20 |
| 2013 | Trigonodus orientalis Hautmann et al. p. 280 figs. 7D-G |
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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.
†Trigonodus orientalis Bittner 1899
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 2 | 9.63 | 4.68 | 19.8 | 12.2 | 10.7 | |
| valve height | 6 | 9.96 | 6.50 | 19.9 | 9.45 | 4.90 |
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| Source: o = order, c = class | |||||
| Reference: Aberhan et al. 2004 | |||||
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Triassic | Russian Federation (Primorsky Krai) | Trigonodus orientalis (type locality: 202918) | |
| Smithian | Russian Federation | Trigonodus orientalis (90220) | |
| Spathian | USA (Utah) | Trigonodus orientalis (62970 63007 63008 63016 63145 122198 141586 141595) Trigonodus sp. (62974) |