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Meekophiceras
Taxonomy
Meekophiceras was named by Tozer (1994).
It was assigned to Meekoceratidae by Tozer (1994); and to Gyronitidae by Brühwiler and Bucher (2012).
It was assigned to Meekoceratidae by Tozer (1994); and to Gyronitidae by Brühwiler and Bucher (2012).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1994 | Meekophiceras Tozer p. 65 |
| 2012 | Meekophiceras Brühwiler and Bucher p. 93 |
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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. †Meekophiceras Tozer 1994
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†Meekophiceras columbianum Tozer 1963
†Meekophiceras dubium Spath 1935
†Meekophiceras franklini Tozer 1994
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 13 | 31.7 | 24.4 | 41.2 | 32.8 | 11.9 | |
| shell diameter | 13 | 40.5 | 19.4 | 88.1 | 44.6 | 19.8 | |
| shell inflation | 13 | 12.1 | 7.10 | 20.5 | 13.8 | 9.48 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: base of the Griesbachian to the top of the Dienerian or 251.90200 to 249.90000 Ma
Collections (16 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Griesbachian | Armenia | Ophiceras dubium (110781) | |
| Griesbachian | Greenland | Ophiceras dubium (112718 112756 118513 118590 118727 118733 118758 118769) | |
| Griesbachian | Iran | Lytophiceras dubium (112963) | |
| Dienerian | Canada (British Columbia) | M. columbianum (137502) | |
| Dienerian | China (Guizhou) | M. franklini (113870) | |
| Dienerian | Canada (Nunavut) | M. franklini (61975 61976 137782) | |
| Dienerian | China (Hubei) | Lytophiceras dubium (95717) |