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Metengonoceras
Taxonomy
Metengonoceras was named by Hyatt (1903) [Sepkoski's age data: K Albi-u K Ceno-u Sepkoski's reference number: 1066]. Its type is Metengonoceras inscriptum.
It was assigned to Ammonoidea by Sepkoski (2002); and to Engonoceratidae by Meister et al. (1992), Kennedy et al. (1998), Kennedy (2005), Aly et al. (2008) and Bulot (2010).
It was assigned to Ammonoidea by Sepkoski (2002); and to Engonoceratidae by Meister et al. (1992), Kennedy et al. (1998), Kennedy (2005), Aly et al. (2008) and Bulot (2010).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1903 | Metengonoceras Hyatt p. 179 |
| 1924 | Epengonoceras Spath p. 508 |
| 1992 | Metengonoceras Meister et al. p. 62 |
| 1998 | Metengonoceras Kennedy et al. p. 26 |
| 2002 | Metengonoceras Sepkoski |
| 2005 | Metengonoceras Kennedy p. 357 |
| 2008 | Metengonoceras Aly et al. p. 46 |
| 2010 | Metengonoceras Bulot |
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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. †Metengonoceras Hyatt 1903
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†Metengonoceras acutum Hyatt 1903
†Metengonoceras ambiguum Hyatt 1903
†Metengonoceras aspenanum Reeside and Weymouth 1931
†Metengonoceras bedoti Grossouvre 1912
†Metengonoceras bravoense Böse 1928
†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]
†Metengonoceras inscriptum Hyatt 1903
†Metengonoceras oliveirai Brito 1967
†Metengonoceras teigenense Cobban and Kennedy 1989
Invalid names: Epengonoceras Spath 1924 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 9 | 50.0 | 29.5 | 79.0 | 52.0 | 16.4 | |
| shell diameter | 9 | 90.4 | 55.5 | 143.0 | 96.0 | 26.3 | |
| shell inflation | 9 | 7.90 | 5.00 | 13.7 | 7.00 | 3.29 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: base of the Late/Upper Aptian to the top of the Turonian or 122.46000 to 89.80000 Ma
Collections (48 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Aptian | USA (Texas) | M. inscriptum (84441) | |
| Albian | Madagascar | M. kuntzi, M. carinatum (98245) | |
| Early/Lower Albian | USA (Texas) | M. ambiguum (82413) M. inscriptum, M. ambiguum (82412) | |
| Cenomanian | USA (Texas) | M. dumbli (4648 4655 6493 6498 6505 6506 6513 6533 6591 6593 6595 6604 6606 6607 6611 6614 6644) | |
| Early/Lower Cenomanian | USA (Texas) | Engonoceras bravoense (88219) M. bravoense (175110 175111) | |
| Early/Lower Cenomanian | Mexico (Chiapas) | M. sp. (192074) | |
| Early/Lower Cenomanian | Mexico (Coahuila de Zaragoza) | Engonoceras bravoense (88218) | |
| Late/Upper Cenomanian | USA (Texas) | M. acutum (175717 175718) | |
| Late/Upper Cenomanian | USA (Iowa) | M. dumbli (88009) | |
| Late/Upper Cenomanian | USA (Minnesota) | M. acutum (175723) M. dumblei (88011 88012) | |
| Late/Upper Cenomanian | USA (New Mexico) | M. acutum (175721) | |
| Late/Upper Cenomanian | Niger | M. dumbli (175432 175437 175438 175446) | |
| Late/Upper Cenomanian | Jordan | M. dumbli (178496 178508) | |
| Late/Upper Cenomanian | Nigeria | Epengonoceras dumbli (210096) | |
| Middle Cenomanian | Mexico (Coahuila de Zaragoza) | Engonoceras bravoense (88222) | |
| Middle Cenomanian | USA (Texas) | M. dumbli (175719 175722) | |
| Middle Cenomanian | USA (Colorado) | M. dumbli (175720) | |
| Turonian | USA (Minnesota) | Epengonoceras dumblei (1987 1990) | |
| Turonian | Nigeria | Epengonoceras dumblii (3812) | |
| Late/Upper Turonian | Spain | Epengonoceras sp. (66962) |