| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Axestemys quinni
Taxonomy
Paleotrionyx quinni was named by Schmidt (1945). Its type specimen is FMNH P26441, a partial shell (Carapace with one side essentially complete), and it is a 3D body fossil. Its type locality is Finley Ranch House, 4 miles west of DeBeque, which is in a Clarkforkian terrestrial horizon in the DeBeque Formation of Colorado.
It was recombined as Trionyx quinni by Gaffney (1979), Holman (1982); it was recombined as Axestemys quinni by Hutchison and Holroyd (2003), Vitek (2012), Vitek and Joyce (2015), Lichtig and Lucas (2015).
It was recombined as Trionyx quinni by Gaffney (1979), Holman (1982); it was recombined as Axestemys quinni by Hutchison and Holroyd (2003), Vitek (2012), Vitek and Joyce (2015), Lichtig and Lucas (2015).
Synonymy list
| Year | Name and author |
|---|---|
| 1945 | Paleotrionyx quinni Schmidt |
| 1979 | Trionyx quinni Gaffney |
| 1982 | Trionyx quinni Holman p. 32 |
| 2000 | Paleotrionyx quinni Chkhikvadze |
| 2003 | Axestemys quinni Hutchison and Holroyd |
| 2012 | Axestemys quinni Vitek pp. table 1 |
| 2015 | Axestemys quinni Lichtig and Lucas |
| 2015 | Axestemys quinni Vitek and Joyce |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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.
†Axestemys quinni Schmidt 1945
show all | hide all
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| K. P. Schmidt 1945 | A large trionychid with a flat rugose portion of the carapace ending laterally with an abrupt margin bordered by a smooth strip, set below the level of the rugose disk, from which the ribs extend. Nuchal broadly in contact with the rib-end of the first costal, otherwise separated from the first costal by an excavation that reaches the large preneural. Distinguished from Paleotrionyx puercensis by its much more elongate neurals. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|||||
|
|
||||
| Source: f = family, subp = subphylum | |||||
| References: Carroll 1988, Ernst and Barbour 1989 | |||||
Age range: Clarkforkian or 56.20000 to 54.90000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Clarkforkian | USA (Colorado) | Paleotrionyx quinni (type locality: 120547) |