| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Rhipidognathus symmetricus
Taxonomy
Rhipidognathus symmetricus was named by Branson et al. (1951).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1951 | Rhipidognathus symmetricus Branson et al. |
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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.
†Rhipidognathus symmetricus Branson et al. 1951
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class | |||||
| Reference: Aberhan 1992 | |||||
Age range: base of the Ashgill to the top of the Richmondian or 449.50000 to 445.50000 Ma
Collections (21 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Ordovician | Russian Federation (Severnaya Zemlya) | Rhipidognathus symmetricus (178073 178077) | |
| Katian | China | Rhipidognathus symmetricus (187378 187386 187388) | |
| Richmondian | Canada (Québec) | Rhipidognathus symmetricus (24569) | |
| Richmondian | Greenland | Rhipidognathus symmetricus (182392 182976 183031 183032) | |
| Richmondian | Canada (Manitoba) | Rhipidognathus symmetricus (177633 177645) | |
| Richmondian | Canada (Northwest Territories) | Rhipidognathus symmetricus (26091 26096) | |
| Ashgill | Canada (Québec) | Rhipidognathus symmetricus (24571 24841) | |
| Gamachian | Canada (Manitoba) | Rhipidognathus symmetricus (177634 177660 177683 177684) | |
| Ashgill - Wenlock | Canada (Nunavut) | Rhipidognathus symmetricus (188191) |