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Metengonoceras dumbli
Taxonomy
Sphenodiscus dumbli was named by Cragin (1893). It is a 3D body fossil.
It was recombined as Epengonoceras dumbli by Spath (1924) and Barber (1957); it was misspelled as Metengonoceras dumblei by Diener (1925); it was recombined as Metengonoceras dumbli by Hyatt (1903), Kennedy et al. (1981), Cobban (1983), Cobban (1987), Meister et al. (1992) and Aly et al. (2008).
It was recombined as Epengonoceras dumbli by Spath (1924) and Barber (1957); it was misspelled as Metengonoceras dumblei by Diener (1925); it was recombined as Metengonoceras dumbli by Hyatt (1903), Kennedy et al. (1981), Cobban (1983), Cobban (1987), Meister et al. (1992) and Aly et al. (2008).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1893 | Sphenodiscus dumbli Cragin p. 243 figs. pl. 44, fig. 6 |
| 1903 | Metengonoceras dumbli Hyatt |
| 1912 | Metengonoceras arnaudi Grossouvre p. 30 |
| 1912 | Metengonoceras douvillei Grossouvre p. 34 figs. pl. 3, fig. 3 |
| 1912 | Metengonoceras tolveiense Grossouvre p. 36 figs. pl. 3, fig. 4 |
| 1924 | Epengonoceras dumbli Spath |
| 1925 | Metengonoceras dumblei Diener p. 229 |
| 1935 | Metengonoceras nigeriense Furon p. 55 figs. pl. 3, fig. 1 |
| 1957 | Epengonoceras dumbli Barber p. 9 figs. Pl 25, figs 9,10 |
| 1981 | Metengonoceras dumbli Kennedy et al. |
| 1983 | Metengonoceras dumbli Cobban p. 11 |
| 1987 | Metengonoceras dumbli Cobban p. C2 figs. Pl 1, figs 3-6,8; pl 2, figs 1-3,9,10; text-fig 1 |
| 1992 | Metengonoceras dumbli Meister et al. p. 62 figs. Pl 1, figs 7,8; text-fig 9 |
| 2008 | Metengonoceras dumbli Aly et al. p. 46 figs. Pl 3, figs 1a-c; text-fig 3.1 |
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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.
†Metengonoceras dumbli Cragin 1893
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Invalid names: Metengonoceras arnaudi Grossouvre 1912 [synonym], Metengonoceras douvillei Grossouvre 1912 [synonym], Metengonoceras nigeriense Furon 1935 [synonym], Metengonoceras tolveiense Grossouvre 1912 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 3 | 55.2 | 45.0 | 72.0 | 52.0 | 14.0 | |
| shell diameter | 3 | 97.0 | 88.0 | 108.0 | 96.0 | 10.1 | |
| shell inflation | 3 | 7.49 | 6.00 | 10.0 | 7.00 | 2.08 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: base of the Late/Upper Cenomanian to the top of the Cenomanian or 99.60000 to 93.90000 Ma
Collections (29 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Cenomanian | USA (Texas) | Metengonoceras dumbli (4648 4655 6493 6498 6505 6506 6513 6533 6591 6593 6595 6604 6606 6607 6611 6614 6644) | |
| Late/Upper Cenomanian | Jordan | Metengonoceras dumbli (178496 178508) | |
| Late/Upper Cenomanian | Niger | Metengonoceras dumbli (175432 175437 175438 175446) | |
| Late/Upper Cenomanian | Nigeria | Epengonoceras dumbli (210096) | |
| Late/Upper Cenomanian | USA (Minnesota) | Metengonoceras dumblei (88011 88012) | |
| Middle Cenomanian | USA (Texas) | Metengonoceras dumbli (175719 175722) | |
| Middle Cenomanian | USA (Colorado) | Metengonoceras dumbli (175720) |