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Tonkinella breviceps
Taxonomy
Tonkinella breviceps was named by Kobayashi (1934).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1934 | Tonkinella breviceps Kobayashi pp. 300 - 301 figs. Figs. 2 - 6 |
| 1994 | Tonkinella breviceps Sundberg pp. 35 - 37 figs. Figure 24 |
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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.
†Tonkinella breviceps Kobayashi 1934
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. A. Sundberg 1994 | onkinella with up- turned anterior border on cranidium. Pygidium with smooth margin, moderate ro moderately shallow pleural furrows of unifom depth not reaching border, narrow posterior pleural segment, segment width 7-11.5% pygidial width, 3-5 axial rings. |
Measurements
No measurements are available
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| Source: g = genus, f = family, o = order, c = class | |||||
| References: Aberhan et al. 2004, Hendy 2009, Hendy et al. 2009, Whittington et al. 1997 | |||||
Collections (15 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Delamaran | USA (Utah) | Tonkinella breviceps (10565 134059 134068 134070 134111 134113 134115 134116 134117) | |
| Delamaran | USA (Nevada) | Tonkinella breviceps (134249 134253 134254 134255 134257) | |
| St Davids | Spain (Leon) | Tonkinella breviceps (55503) |