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Myophorigonia
Taxonomy
Myophorigonia was named by Cox (1952) [Sepkoski's age data: Tr Carn J Bajo Sepkoski's reference number: 94]. It is not extant.
It was assigned to Trigoniidae by Cox (1952); to Trigonioida by Sepkoski (2002); and to Minetrigoniidae by Tamura and McRoberts (1993), Ros-Franch et al. (2014).
It was assigned to Trigoniidae by Cox (1952); to Trigonioida by Sepkoski (2002); and to Minetrigoniidae by Tamura and McRoberts (1993), Ros-Franch et al. (2014).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1952 | Myophorigonia Cox |
| 1993 | Myophorigonia Tamura and McRoberts |
| 2002 | Myophorigonia Sepkoski |
| 2014 | Myophorigonia Ros-Franch et al. |
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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. †Myophorigonia Cox 1952
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†Myophorigonia jaworskii Steinmann 1929
†Myophorigonia kobayashii Tamura and McRoberts 1993
†Myophorigonia margaritifera Boehm 1904
†Myophorigonia parcinoda Lycett 1872
†Myophorigonia paucicostata Jaworski 1922
†Myophorigonia salasi de Cserna 1961
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| valve height | 1 | 15.0 |
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| Source: f = family | |||||
| References: Aberhan et al. 2004, Ros-Franch et al. 2014 | |||||
Age range: base of the Ladinian to the top of the Late/Upper Pliensbachian or 241.46400 to 184.20000 Ma
Collections (23 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Ladinian | Svalbard and Jan Mayen | Trigonia margaritifera (212198) | |
| Carnian | Mexico (Sonora) | M. salasi (142640) | |
| Carnian | Peru | Myophoria paucicostata (206467 206479) | |
| Late/Upper Triassic | Peru | Perugonia jaworskii (205951) | |
| Late/Upper Triassic | Mexico (Sonora) | M. jaworskii (41020) | |
| Tuvalian | USA (Oregon) | M. kobayashii (100362) | |
| Norian | Peru | Myophoria jaworskii (206093) Myophoria jaworskii, Myophoria paucicostata (71780) Myophoria paucicostata (206468 206480) | |
| Norian | Colombia (Tolima) | M. paucicostata (101058) | |
| Norian | Mexico (Sonora) | M. jaworskii, M. salasi (39172) | |
| Norian - Rhaetian | Chile (Antofagasta) | M. paucicostata (98590) | |
| Alaunian - Sevatian | Mexico (Sonora) | M. jaworskii (34983) | |
| Rhaetian | Canada (British Columbia) | M. multicostata (45379) | |
| Late/Upper Sinemurian | Chile | M. neuquensis (34058) | |
| Late/Upper Pliensbachian | Chile | M. neuquensis (33658 33660 33661 33883 33889 33890) |