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Megaglossoceras
Taxonomy
Megaglossoceras was named by Miller et al. (1933) [Sepkoski's age data: C Mosc-u Sepkoski's reference number: 300].
It was assigned to Nautilida by Sepkoski (2002); and to Ephippioceratidae by Hoare (1961), Teichert et al. (1964) and Leonova and Shchedukhin (2020).
It was assigned to Nautilida by Sepkoski (2002); and to Ephippioceratidae by Hoare (1961), Teichert et al. (1964) and Leonova and Shchedukhin (2020).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1933 | Megaglossoceras Miller et al. |
| 1961 | Megaglossoceras Hoare p. 134 |
| 1964 | Megaglossoceras Teichert et al. p. 448 |
| 2002 | Megaglossoceras Sepkoski |
| 2020 | Megaglossoceras Leonova and Shchedukhin p. 1123 |
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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. †Megaglossoceras Miller et al. 1933
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†Megaglossoceras barskovi Leonova and Shchedukhin 2020
†Megaglossoceras glicki Gordon 1964
†Megaglossoceras okense Shimanskiy 1967
†Megaglossoceras pristinum Miller and Owen 1934
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 3 | 33.5 | 21.9 | 52.0 | 33.0 | 15.2 | |
| shell diameter | 3 | 62.2 | 43.0 | 86.0 | 65.0 | 21.5 | |
| shell inflation | 3 | 10.5 | 8.06 | 14.5 | 10.0 | 3.30 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: base of the Bashkirian to the top of the Asselian or 323.20000 to 295.50000 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Bashkirian | Ukraine | M. sp. (228668) | |
| Moscovian | USA (Arkansas) | M. glicki (158013) | |
| Desmoinesian | USA (Missouri) | M. pristinum (70278) | |
| Desmoinesian | USA (Oklahoma) | M. sp. (91530) | |
| Podolskian | Russian Federation | M. okense (49968) | |
| Asselian | Russian Federation (Bashkortostan) | M. barskovi (204136) |