| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Trigonodus problematicus
Taxonomy
Unio problematicus was named by Klipstein (1843).
It was recombined as Cardinia problematica by Hauer (1907); it was recombined as Trigonodus problematicus by Waagen (1907), Jelen (1989).
It was recombined as Cardinia problematica by Hauer (1907); it was recombined as Trigonodus problematicus by Waagen (1907), Jelen (1989).
Sister species lacking formal opinion data
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.
†Trigonodus problematicus Klipstein 1843
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| Reference: Aberhan et al. 2004 | |||||
Age range: base of the Longobardian to the top of the Julian or 239.48000 to 233.60000 Ma
Collections (10 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Ladinian | Thailand | Trigonodus problematicus (44812) | |
| Longobardian | Italy (Trentino) | Trigonodus problematicus (44953) | |
| Julian | Slovenia | Trigonodus problematicus (57097 57098 57099 57102 57104 57108 57109) | |
| Julian | Italy (Lombardy) | Trigonodus problematicus (85240) |