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Knightoceras
Taxonomy
Knightoceras was named by Miller and Owen (1934) [Sepkoski's age data: C Serp-l P Leon Sepkoski's reference number: 524,1066].
It was assigned to Nautilida by Sepkoski (2002); and to Koninckioceratidae by Teichert et al. (1964), Sabattini et al. (2006).
It was assigned to Nautilida by Sepkoski (2002); and to Koninckioceratidae by Teichert et al. (1964), Sabattini et al. (2006).
Synonymy list
| Year | Name and author |
|---|---|
| 1934 | Knightoceras Miller and Owen |
| 1964 | Knightoceras Teichert et al. p. 426 |
| 2002 | Knightoceras Sepkoski |
| 2006 | Knightoceras Sabattini et al. pp. 1144, 1145 |
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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.
G. †Knightoceras Miller and Owen 1934
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†Knightoceras kempae Miller and Youngquist 1949
†Knightoceras lena Shimanskiy 1967
†Knightoceras louphaphontaensis Ramsbottom and Moore 1961
†Knightoceras oxylobatum Miller and Downs 1948
†Knightoceras patulum Unklesbay 1962
†Knightoceras subcariniferum Tzwetaev 1888
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 5 | 18.6 | 12.0 | 27.0 | 20.0 | 6.02 | |
| shell diameter | 5 | 45.2 | 32.0 | 70.0 | 43.0 | 17.2 | |
| shell inflation | 5 | 15.1 | 8.50 | 28.0 | 13.0 | 7.75 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: base of the Brigantian to the top of the Artinskian or 335.90000 to 283.30000 Ma
Collections (21 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Holkerian - Brigantian | Australia (New South Wales) | K. sp. (5606) | |
| Visean | Australia (New South Wales) | K. sp. (5603) | |
| Brigantian | Ireland | K. louphaphontaensis (224293 224458 224463 224466 224468) | |
| Pendleian | Kazakhstan | K. lena (8421) | |
| Morrowan | USA (Arkansas) | K. oxylobatum (43369 43374 43378 43383 43424) K. patulum (43376) K. patulum, K. oxylobatum (43377) | |
| Bashkirian | USA (Oklahoma) | K. patulum (157970 157971) | |
| Moscovian | USA (Arkansas) | K. oxylobatum (157834) | |
| Podolskian | Russian Federation | Nautilus subcariniferus (166283) | |
| Artinskian | USA (Texas) | K. kempae (113417) Nautilus winslowi (108766) |