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Didymoceras vancouverensis
Taxonomy
Hamites vancouverensis was named by Gabb (1864).
It was recombined as Exiteloceras vancouverense by Anderson (1958); it was recombined as Didymoceras vancouverense by Matsumoto (1960); it was recombined as Didymoceras vancouverensis by Atabekyan and Khakimov (1976).
It was recombined as Exiteloceras vancouverense by Anderson (1958); it was recombined as Didymoceras vancouverense by Matsumoto (1960); it was recombined as Didymoceras vancouverensis by Atabekyan and Khakimov (1976).
Sister species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1864 | Hamites vancouverensis Gabb p. 70 figs. Pl 13, fig 18 |
| 1958 | Didymoceras fresnoense Anderson p. 197 figs. Plate 68, figure 2 |
| 1958 | Exiteloceras vancouverense Anderson p. 201 |
| 1960 | Didymoceras vancouverense Matsumoto pp. 54, 59, 61, 89 |
| 1976 | Didymoceras vancouverensis Atabekyan and Khakimov p. 48 figs. Pl 5, figs 1-3 |
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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.
†Didymoceras vancouverensis Gabb 1864
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Invalid names: Didymoceras fresnoense Anderson 1958 [synonym]
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 Campanian to the top of the Maastrichtian or 83.60000 to 66.00000 Ma
Collections (9 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Campanian | USA (California) | Exiteloceras bennisoni (86859) | |
| Late/Upper Campanian | Tajikistan | Didymoceras vancouverensis (185088) | |
| Late/Upper Campanian | Uzbekistan | Didymoceras vancouverensis (185087) | |
| Late/Upper Campanian | USA (California) | Didymoceras fresnoense (185396) Didymoceras vancouverense (225372) | |
| Early/Lower Maastrichtian | USA (California) | Didymoceras fresnoense, Exiteloceras vancouverense (83776) | |
| Maastrichtian | Mexico (Baja California) | Hamites vancouverensis (158099) | |
| Maastrichtian | USA (California) | Exiteloceras vancouverense (83774 83777) |