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Knightina macknighti
Taxonomy
Knightina macknighti was named by Sohn (1954) [?Knightina macknighti]. Its type specimen is USNM 118393, a shell (Carapace), and it is a 3D body fossil. Its type locality is USNM703c, Old Word Ranch, Glass Mountains, which is in a Kungurian slope limestone in the Road Canyon Formation of Texas.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1954 | Knightina macknighti Sohn p. 11 figs. Pl 2, figs 7,8; pl 3, figs 4-12 |
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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.
†Knightina macknighti Sohn 1954
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| valve height | 4 | 0.516 | 0.440 | 0.660 | 0.495 | 0.095 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Alvarez et al. 2008 | |||||
Age range: base of the Artinskian to the top of the Kungurian or 290.10000 to 272.30000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Artinskian | USA (Texas) | Knightina macknighti (117948) | |
| Kungurian | USA (Texas) | Knightina macknighti (type locality: 43517) |