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Aphelognathus pyramidalis
Taxonomy
Zygognathus pyramidalis was named by Branson et al. (1951).
It was recombined as Aphelognathus pyramidalis by Armstrong (1990).
It was recombined as Aphelognathus pyramidalis by Armstrong (1990).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1951 | Zygognathus pyramidalis Branson et al. |
| 1990 | Aphelognathus pyramidalis Armstrong |
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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.
†Aphelognathus pyramidalis 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, subp = subphylum | |||||
| References: Carroll 1988, Aberhan 1992 | |||||
Age range: Katian or 452.80000 to 445.20000 Ma
Collections (24 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Ordovician | Russian Federation (Severnaya Zemlya) | Aphelognathus pyramidalis (178073 178075 178076 178077) | |
| Chatfieldian - Edenian | Canada (Manitoba) | Aphelognathus pyramidalis (177630) | |
| Katian | China | Aphelognathus pyramidalis (187385) | |
| Richmondian | Greenland | Aphelognathus pyramidalis (182390 182391 182392 182455 182457 182977 183125) | |
| Richmondian | Canada (Manitoba) | Aphelognathus pyramidalis (177631 177632 177633 177644 177645) | |
| Richmondian | Canada (Québec) | Aphelognathus pyramidalis (24569) | |
| Ashgill | Canada (Québec) | Aphelognathus pyramidalis (24566 24571 24572 24573) | |
| Gamachian | Canada (Manitoba) | Aphelognathus pyramidalis (177634) |