| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Tonkinella valida
Taxonomy
Tonkinella valida was named by Tchernysheva (1962).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1962 | Tonkinella valida Tchernysheva pp. 30 - 32 figs. pl. 3, figs. 1-3, not fig. 4 |
| 1994 | Tonkinella valida Sundberg pp. 37 - 40 figs. Figure 25 |
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.
†Tonkinella valida Tchernysheva 1962
show all | hide all
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. A. Sundberg 1994 | .Tonkinella with cra- nidium with strongly posterolateral directed ocular ridges, slightly upturned anterior border, low con- vex frontal lobe, plectrum, and medial sulcus in frontal lobe. Pygidium with smooth margin, mod- erate to moderately shallow pleural furrows of uni- form depth not reaching border, wide posterior pleural segment (13-19% pygidial width), and 5-6 axial rings. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|
||||
| Source: g = genus, f = family, o = order, c = class | |||||
| References: Aberhan et al. 2004, Whittington et al. 1997, Hendy 2009, Hendy et al. 2009 | |||||
Collections (13 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Delamaran | USA (Utah) | Tonkinella valida (10565 134113 134117) | |
| Delamaran | USA (Nevada) | Tonkinella valida (134249 134253 134254 134257) | |
| Amgan | Kazakhstan | Tonkinella valida (9970 9973 9976 9977) | |
| Wuliuan - Topazan | Mexico | Tonkinella valida (236858) | |
| Tuesaian | Kazakhstan | Tonkinella valida (118054) |