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Metaplacenticeras
Taxonomy
Metaplacenticeras was named by Spath (1926) [Sepkoski's age data: K Camp-u].
It was assigned to Ammonoidea by Sepkoski (2002); and to Placenticeratidae by Matsumoto (1959), Matsumoto (1984), Shigeta (2016).
It was assigned to Ammonoidea by Sepkoski (2002); and to Placenticeratidae by Matsumoto (1959), Matsumoto (1984), Shigeta (2016).
Synonymy list
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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. †Metaplacenticeras Spath 1926
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†Metaplacenticeras bowersi Anderson 1958
†Metaplacenticeras californicum Anderson 1902
†Metaplacenticeras pacificum Smith 1900
†Metaplacenticeras sanctaemonicae Waring 1917
†Metaplacenticeras subtilistriatum Jimbo 1894
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: base of the Early/Lower Albian to the top of the Early/Lower Campanian or 113.20000 to 72.20000 Ma
Collections (46 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Albian | USA (California) | M. californicum, M. pacificum (44267) | |
| Late/Upper Cretaceous | USA (California) | M. sanctaemonicae (206274 206278 237458 237459 237460) Placenticeras californicum, Placenticeras pacificum, Placenticeras sanctaemonicae (193034) | |
| Turonian | USA (California) | M. pacificum (86812) | |
| Coniacian | USA (California) | M. californicum, M. pacificum (44270) | |
| Campanian | Japan | M. subtilistriatum (87023 87025 87027 87029 87030 87031 87032 87033) | |
| Campanian | USA (California) | M. sp. (224988) | |
| Early/Lower Campanian | Antarctica | M. sp. (83354) | |
| Late/Upper Campanian | Antarctica | M. sp. (83385 83390) | |
| Late/Upper Campanian | USA (California) | M. bowersi (185168) M. californicum (221105) M. californicum, M. pacificum (72057 86793 86819) M. pacificum (86794 86872 98225 151977 185397 214144 220905 225636 225637 225799 225926) M. sanctaemonicae, M. californicum, M. pacificum (86811) M. sp. (225635) | |
| Middle Campanian | USA (California) | M. californicum (221106 221107) M. sp. (225373) | |
| Middle Campanian | Japan | M. subtilistriatum (181920 181921 181922) | |
| Middle Campanian - Late/Upper Campanian | USA (California) | M. pacificum (215264) |