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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Kirkbya firma
Taxonomy
Kirkbya firma was named by Kellett (1933). It is a 3D body fossil. Its type locality is Highway 40, just west of Victory Junction, which is in a Kasimovian carbonate limestone in the Stanton Formation of Kansas.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1933 | Kirkbya firma Kellett p. 87 figs. Pl 14, figs 9, 10 |
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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.
†Kirkbya firma Kellett 1933
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| carapace height | 1 | 0.480 | - | - | - | - | |
| shell height | 2 | 0.550 | 0.550 | 0.550 | 0.550 | - |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Alvarez et al. 2008 | |||||
Age range: base of the Kasimovian to the top of the Artinskian or 307.00000 to 279.30000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kasimovian | USA (Kansas) | Kirkbya firma (type locality: 132992) | |
| Artinskian | Canada (British Columbia) | Kirkbya firma (106670) |