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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) and Shigeta (2016).
It was assigned to Ammonoidea by Sepkoski (2002); and to Placenticeratidae by Matsumoto (1959), Matsumoto (1984) and 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 | |||||
Collections (43 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Cretaceous | USA (California) | M. sanctaemonicae (206274 206278) Placenticeras californicum, Placenticeras pacificum, Placenticeras sanctaemonicae (193034) | |
| Turonian | USA (California) | M. pacificum (86812) | |
| Coniacian | USA (California) | M. californicum, M. pacificum (44267 44270) | |
| Campanian | USA (California) | M. sp. (224988 225373) | |
| Campanian | Japan | M. subtilistriatum (87023 87025 87027 87029 87030 87031 87032 87033) | |
| 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, 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 | Japan | M. subtilistriatum (181920 181921 181922) | |
| Middle Campanian | USA (California) | M. californicum (221105 221106 221107) | |
| Middle Campanian - Late/Upper Campanian | USA (California) | M. pacificum (215264) |