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Monocheilus
Taxonomy
Monocheilus was named by Resser (1937) [Sepkoski's age data: Cm Fran-l Cm Trep-l Sepkoski's reference number: 379].
It was assigned to Asaphida by Sepkoski (2002); and to Dikelocephalidae by Jell and Adrain (2002).
It was assigned to Asaphida by Sepkoski (2002); and to Dikelocephalidae by Jell and Adrain (2002).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1937 | Monocheilus Resser |
| 2002 | Monocheilus Jell and Adrain p. 408 |
| 2002 | Monocheilus Sepkoski |
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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. †Monocheilus Resser 1937
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†Monocheilus anatinum Hall 1863
†Monocheilus micros Walter 1926
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, o = order, c = class | |||||
| References: Hendy et al. 2009, Whittington et al. 1997, Aberhan et al. 2004, Hendy 2009 | |||||
Age range: base of the Trempealeauan to the top of the Sunwaptan or 490.20000 to 488.90000 Ma
Collections (31 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Cambrian | USA (Wisconsin) | M. sp. (250) | |
| Cambrian | USA (Montana) | M. sp. (258) | |
| Franconian | USA (Montana) | M. demissus (247) | |
| Franconian | USA (South Dakota) | M. micros (9736 9737 9738 9739 9745 9751) | |
| Franconian | USA (Minnesota) | M. anatinum (62100 62101 62102 62103 62108 62117 62118) M. anatinum, M. micros (62099 62104 62107 62113) | |
| Sunwaptan | Canada (Alberta) | M. micros (54088) M. orestes (54090 54091) M. orestes, M. micros (64687) M. truncatus (54093 81307) | |
| Trempealeauan | USA (Wyoming) | M. truncatus (9767) | |
| Trempealeauan | USA (Texas) | M. truncatus (216017 216018) | |
| Trempealeauan | USA (South Dakota) | M. truncatus (9756 9763) |