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Schizodus trigonalis
Taxonomy
Schizodus trigonalis was named by Sayre (1930).
Sister species lacking formal opinion data
S. sp., S. appressus, S. axiniformis, S. cheveriensis, S. compressus, S. cuneus, S. dilgryensis, S. drpressus, S. elliotti, S. ewaldi, S. fundiensis, S. harii, S. impressus, S. jakovlevi, S. oherni, S. oweni, S. paucus, S. peregrins, S. pindingensis, S. portlocki, S. sedaliensis, S. semistriatus, S. subelegans, S. taiti, S. truemani, S. batesvillensis, S. brannerianus
Synonymy list
| Year | Name and author |
|---|---|
| 1930 | Schizodus trigonalis Sayre |
| 1975 | Schizodus trigonalis Newell and Boyd p. 117 fig. 54 |
| 1987 | Schizodus trigonalis Fang p. 387 figs. Pl 6, fig 17 |
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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.
†Schizodus trigonalis Sayre 1930
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| valve height | 1 | 25.1 |
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| Source: o = order, c = class | |||||
| Reference: Aberhan et al. 2004 | |||||
Age range: base of the Tournaisian to the top of the Capitanian or 358.86000 to 259.51000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Tournaisian | USA (Iowa) | Schizodus trigonalis (3309) | |
| Capitanian | China (Hunan) | Schizodus trigonalis (107811) | |
| Capitanian | China (Guangdong) | Schizodus trigonalis (113864) |